Update to kernel headers v4.9.6.

Test: Built arm/arm64/x86/x86_64 targets.
Change-Id: Id4d2711aaa96fe537f3726a0a89f2959e9cca34a
diff --git a/libc/kernel/uapi/asm-arm64/asm/ptrace.h b/libc/kernel/uapi/asm-arm64/asm/ptrace.h
index 465c7bb..66bda87 100644
--- a/libc/kernel/uapi/asm-arm64/asm/ptrace.h
+++ b/libc/kernel/uapi/asm-arm64/asm/ptrace.h
@@ -64,18 +64,20 @@
   __uint128_t vregs[32];
   __u32 fpsr;
   __u32 fpcr;
-};
+  __u32 __reserved[2];
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
 struct user_hwdebug_state {
   __u32 dbg_info;
   __u32 pad;
-  struct {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  struct {
     __u64 addr;
     __u32 ctrl;
     __u32 pad;
-  } dbg_regs[16];
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  } dbg_regs[16];
 };
 #endif
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
diff --git a/libc/kernel/uapi/linux/version.h b/libc/kernel/uapi/linux/version.h
index e2a421d..0fc7e59 100644
--- a/libc/kernel/uapi/linux/version.h
+++ b/libc/kernel/uapi/linux/version.h
@@ -16,5 +16,5 @@
  ***
  ****************************************************************************
  ****************************************************************************/
-#define LINUX_VERSION_CODE 264451
+#define LINUX_VERSION_CODE 264454
 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))