dm: bump the ioctl version to 4.32.0

This fix enables userspace to detect that the dm-stats changes from the
4.2 merge are in place.
Reported-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

include/uapi/linux/dm-ioctl.h

@@ -267,9 +267,9 @@ enum {
 #define DM_DEV_SET_GEOMETRY	_IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
 
 #define DM_VERSION_MAJOR	4
-#define DM_VERSION_MINOR	31
+#define DM_VERSION_MINOR	32
 #define DM_VERSION_PATCHLEVEL	0
-#define DM_VERSION_EXTRA	"-ioctl (2015-3-12)"
+#define DM_VERSION_EXTRA	"-ioctl (2015-6-26)"
 
 /* Status bits */
 #define DM_READONLY_FLAG	(1 << 0) /* In/Out */