Update to v5.15 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.15

Test: Builds, and ran bionic unit tests on flame.
Change-Id: I86901ea6d89fb0f7384b90a47bef35d194083c24
diff --git a/libc/kernel/uapi/linux/prctl.h b/libc/kernel/uapi/linux/prctl.h
index 907064d..7a4b2d7 100644
--- a/libc/kernel/uapi/linux/prctl.h
+++ b/libc/kernel/uapi/linux/prctl.h
@@ -138,6 +138,7 @@
 #define PR_SET_SPECULATION_CTRL 53
 #define PR_SPEC_STORE_BYPASS 0
 #define PR_SPEC_INDIRECT_BRANCH 1
+#define PR_SPEC_L1D_FLUSH 2
 #define PR_SPEC_NOT_AFFECTED 0
 #define PR_SPEC_PRCTL (1UL << 0)
 #define PR_SPEC_ENABLE (1UL << 1)
@@ -153,13 +154,13 @@
 #define PR_SET_TAGGED_ADDR_CTRL 55
 #define PR_GET_TAGGED_ADDR_CTRL 56
 #define PR_TAGGED_ADDR_ENABLE (1UL << 0)
-#define PR_MTE_TCF_SHIFT 1
-#define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
-#define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
-#define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
-#define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
+#define PR_MTE_TCF_NONE 0
+#define PR_MTE_TCF_SYNC (1UL << 1)
+#define PR_MTE_TCF_ASYNC (1UL << 2)
+#define PR_MTE_TCF_MASK (PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)
 #define PR_MTE_TAG_SHIFT 3
 #define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
+#define PR_MTE_TCF_SHIFT 1
 #define PR_SET_IO_FLUSHER 57
 #define PR_GET_IO_FLUSHER 58
 #define PR_SET_SYSCALL_USER_DISPATCH 59