Update to kernel headers to v5.1.3.

Test: Builds and boots taimen.
Test: Ran bionic unit tests.
Change-Id: Ieaca8709d568f075df8cac60c9da2c0ed1916963
diff --git a/libc/kernel/uapi/linux/auto_fs.h b/libc/kernel/uapi/linux/auto_fs.h
index 9a9dd65..39d1ac8 100644
--- a/libc/kernel/uapi/linux/auto_fs.h
+++ b/libc/kernel/uapi/linux/auto_fs.h
@@ -24,7 +24,7 @@
 #define AUTOFS_PROTO_VERSION 5
 #define AUTOFS_MIN_PROTO_VERSION 3
 #define AUTOFS_MAX_PROTO_VERSION 5
-#define AUTOFS_PROTO_SUBVERSION 4
+#define AUTOFS_PROTO_SUBVERSION 5
 #if defined(__ia64__) || defined(__alpha__)
 typedef unsigned long autofs_wqt_t;
 #else