Unfreeze for non re-striping transitions

For non re-striping transitions array must be unfrozen
before end of processing.
For restriping transitions we normally let the child
unfreeze the array but in this case there is no child.

Signed-off-by: Krzysztof Wojcik <krzysztof.wojcik@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

Grow.c

@@ -1725,9 +1725,7 @@ static int reshape_array(char *container, int fd, char *devname,
 				printf("chunk size for %s set to %d\n",
 				       devname, info->array.chunk_size);
 		}
-
-		if (!forked)
-			unfreeze(st);
+		unfreeze(st);
 		return 0;
 	}