Update to kernel headers v4.7.2.

Change-Id: Ie38921bc18a94316dc708b9869e53c2d80c4fed1
diff --git a/original/uapi/linux/raid/md_u.h b/original/uapi/linux/raid/md_u.h
index 1cb8aa6..36cd821 100644
--- a/original/uapi/linux/raid/md_u.h
+++ b/original/uapi/linux/raid/md_u.h
@@ -80,7 +80,7 @@
 	int major_version;
 	int minor_version;
 	int patch_version;
-	int ctime;
+	unsigned int ctime;
 	int level;
 	int size;
 	int nr_disks;
@@ -91,7 +91,7 @@
 	/*
 	 * Generic state information
 	 */
-	int utime;		/*  0 Superblock update time		      */
+	unsigned int utime;	/*  0 Superblock update time		      */
 	int state;		/*  1 State bits (clean, ...)		      */
 	int active_disks;	/*  2 Number of currently active disks	      */
 	int working_disks;	/*  3 Number of working disks		      */