Update to kernel headers v4.9.6.

Test: Built arm/arm64/x86/x86_64 targets.
Change-Id: Ic4d3591a992f1a7daba4cebf0e5ebad9825c7d6e
diff --git a/original/uapi/linux/version.h b/original/uapi/linux/version.h
index b3e1646..1fe7e50 100644
--- a/original/uapi/linux/version.h
+++ b/original/uapi/linux/version.h
@@ -1,2 +1,2 @@
-#define LINUX_VERSION_CODE 264451
+#define LINUX_VERSION_CODE 264454
 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))