Updated to v4.4.1 kernel headers.

Small modifications needed to allow compilation with the new headers:

- Manually modify bionic/libc/kernel/uapi/asm-mips/asm/siginfo.h to
  remove the uapi from the include.
- PR_XXX defines are now available for mips, so remove the definition
  from linker_mips.cpp.

Bug: 23789423
Change-Id: I6dc8a03b012426d3a937db15cb24d3a50fab5a8c
diff --git a/libc/kernel/uapi/linux/iio/events.h b/libc/kernel/uapi/linux/iio/events.h
new file mode 100644
index 0000000..67ecbb2
--- /dev/null
+++ b/libc/kernel/uapi/linux/iio/events.h
@@ -0,0 +1,39 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_IIO_EVENTS_H_
+#define _UAPI_IIO_EVENTS_H_
+#include <linux/ioctl.h>
+#include <linux/types.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct iio_event_data {
+  __u64 id;
+  __s64 timestamp;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
+#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
+#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
+#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16) (mask & 0xFFFF))
+#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16) (((mask) >> 16) & 0xFFFF))
+#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
+#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif
diff --git a/libc/kernel/uapi/linux/iio/types.h b/libc/kernel/uapi/linux/iio/types.h
new file mode 100644
index 0000000..7520dbf
--- /dev/null
+++ b/libc/kernel/uapi/linux/iio/types.h
@@ -0,0 +1,121 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_IIO_TYPES_H_
+#define _UAPI_IIO_TYPES_H_
+enum iio_chan_type {
+  IIO_VOLTAGE,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_CURRENT,
+  IIO_POWER,
+  IIO_ACCEL,
+  IIO_ANGL_VEL,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MAGN,
+  IIO_LIGHT,
+  IIO_INTENSITY,
+  IIO_PROXIMITY,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_TEMP,
+  IIO_INCLI,
+  IIO_ROT,
+  IIO_ANGL,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_TIMESTAMP,
+  IIO_CAPACITANCE,
+  IIO_ALTVOLTAGE,
+  IIO_CCT,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_PRESSURE,
+  IIO_HUMIDITYRELATIVE,
+  IIO_ACTIVITY,
+  IIO_STEPS,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_ENERGY,
+  IIO_DISTANCE,
+  IIO_VELOCITY,
+  IIO_CONCENTRATION,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_RESISTANCE,
+};
+enum iio_modifier {
+  IIO_NO_MOD,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_X,
+  IIO_MOD_Y,
+  IIO_MOD_Z,
+  IIO_MOD_X_AND_Y,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_X_AND_Z,
+  IIO_MOD_Y_AND_Z,
+  IIO_MOD_X_AND_Y_AND_Z,
+  IIO_MOD_X_OR_Y,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_X_OR_Z,
+  IIO_MOD_Y_OR_Z,
+  IIO_MOD_X_OR_Y_OR_Z,
+  IIO_MOD_LIGHT_BOTH,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_LIGHT_IR,
+  IIO_MOD_ROOT_SUM_SQUARED_X_Y,
+  IIO_MOD_SUM_SQUARED_X_Y_Z,
+  IIO_MOD_LIGHT_CLEAR,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_LIGHT_RED,
+  IIO_MOD_LIGHT_GREEN,
+  IIO_MOD_LIGHT_BLUE,
+  IIO_MOD_QUATERNION,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_TEMP_AMBIENT,
+  IIO_MOD_TEMP_OBJECT,
+  IIO_MOD_NORTH_MAGN,
+  IIO_MOD_NORTH_TRUE,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_NORTH_MAGN_TILT_COMP,
+  IIO_MOD_NORTH_TRUE_TILT_COMP,
+  IIO_MOD_RUNNING,
+  IIO_MOD_JOGGING,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_WALKING,
+  IIO_MOD_STILL,
+  IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z,
+  IIO_MOD_I,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_MOD_Q,
+  IIO_MOD_CO2,
+  IIO_MOD_VOC,
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+enum iio_event_type {
+  IIO_EV_TYPE_THRESH,
+  IIO_EV_TYPE_MAG,
+  IIO_EV_TYPE_ROC,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_EV_TYPE_THRESH_ADAPTIVE,
+  IIO_EV_TYPE_MAG_ADAPTIVE,
+  IIO_EV_TYPE_CHANGE,
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+enum iio_event_direction {
+  IIO_EV_DIR_EITHER,
+  IIO_EV_DIR_RISING,
+  IIO_EV_DIR_FALLING,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  IIO_EV_DIR_NONE,
+};
+#endif