Update to kernel headers v4.7.2.

Change-Id: Ie38921bc18a94316dc708b9869e53c2d80c4fed1
diff --git a/original/uapi/linux/gfs2_ondisk.h b/original/uapi/linux/gfs2_ondisk.h
index 1a763ea..7c4be77 100644
--- a/original/uapi/linux/gfs2_ondisk.h
+++ b/original/uapi/linux/gfs2_ondisk.h
@@ -297,6 +297,8 @@
 
 #define GFS2_FNAMESIZE		255
 #define GFS2_DIRENT_SIZE(name_len) ((sizeof(struct gfs2_dirent) + (name_len) + 7) & ~7)
+#define GFS2_MIN_DIRENT_SIZE (GFS2_DIRENT_SIZE(1))
+
 
 struct gfs2_dirent {
 	struct gfs2_inum de_inum;
@@ -304,11 +306,12 @@
 	__be16 de_rec_len;
 	__be16 de_name_len;
 	__be16 de_type;
+	__be16 de_rahead;
 	union {
-		__u8 __pad[14];
+		__u8 __pad[12];
 		struct {
-			__be16 de_rahead;
-			__u8 pad2[12];
+			__u32 de_cookie; /* ondisk value not used */
+			__u8 pad3[8];
 		};
 	};
 };