Update to kernel headers v5.2.

Test: Booted a taimen, ran unit bionic unit tests.
Change-Id: I3522c59793bbcef98ea515996a481d92f14b8816
diff --git a/libc/kernel/uapi/sound/sof/header.h b/libc/kernel/uapi/sound/sof/header.h
new file mode 100644
index 0000000..cf90e9b
--- /dev/null
+++ b/libc/kernel/uapi/sound/sof/header.h
@@ -0,0 +1,29 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 __INCLUDE_UAPI_SOUND_SOF_USER_HEADER_H__
+#define __INCLUDE_UAPI_SOUND_SOF_USER_HEADER_H__
+struct sof_abi_hdr {
+  uint32_t magic;
+  uint32_t type;
+  uint32_t size;
+  uint32_t abi;
+  uint32_t reserved[4];
+  uint32_t data[0];
+} __packed;
+#endif