mtd: convert remaining users to mtd_device_register()

The older add_mtd_device()/add_mtd_partitions() and their removal
counterparts will soon be gone.  Replace uses with mtd_device_register()
and mtd_device_unregister().

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/maps/netsc520.c b/drivers/mtd/maps/netsc520.c
index c0cb319..81dc259 100644
--- a/drivers/mtd/maps/netsc520.c
+++ b/drivers/mtd/maps/netsc520.c
@@ -116,14 +116,14 @@
 	}
 
 	mymtd->owner = THIS_MODULE;
-	add_mtd_partitions( mymtd, partition_info, NUM_PARTITIONS );
+	mtd_device_register(mymtd, partition_info, NUM_PARTITIONS);
 	return 0;
 }
 
 static void __exit cleanup_netsc520(void)
 {
 	if (mymtd) {
-		del_mtd_partitions(mymtd);
+		mtd_device_unregister(mymtd);
 		map_destroy(mymtd);
 	}
 	if (netsc520_map.virt) {