Update to v4.20.1 kernel headers.

This includes one manual change:

In the file bionic/libc/kernel/uapi/linux/in.h, the macro IN_BADCLASS
was not definied correctly. Change the macro from:

  #define IN_BADCLASS(a) ((((long int) (a)) == 0xffffffff)

to:

  #define IN_BADCLASS(a) (((long int) (a)) == (long int)0xffffffff)

This change is being pushed to the upstream kernels.

Test: Builds and boots.
Change-Id: Ia304773a9dc6789b34d9769d73742384d6afb571
Merged-In: Ia304773a9dc6789b34d9769d73742384d6afb571
(cherry picked from commit 967fb01cce73591281e7804e2c0fa9f83b618f5b)
diff --git a/libc/kernel/uapi/linux/v4l2-controls.h b/libc/kernel/uapi/linux/v4l2-controls.h
index 45590a2..3c2d2b2 100644
--- a/libc/kernel/uapi/linux/v4l2-controls.h
+++ b/libc/kernel/uapi/linux/v4l2-controls.h
@@ -18,6 +18,7 @@
  ****************************************************************************/
 #ifndef __LINUX_V4L2_CONTROLS_H
 #define __LINUX_V4L2_CONTROLS_H
+#include <linux/types.h>
 #define V4L2_CTRL_CLASS_USER 0x00980000
 #define V4L2_CTRL_CLASS_MPEG 0x00990000
 #define V4L2_CTRL_CLASS_CAMERA 0x009a0000