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/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c
index 6eddf73..9c30a0b 100644
--- a/drivers/mtd/nand/nuc900_nand.c
+++ b/drivers/mtd/nand/nuc900_nand.c
@@ -321,8 +321,8 @@
 		goto fail3;
 	}
 
-	add_mtd_partitions(&(nuc900_nand->mtd), partitions,
-						ARRAY_SIZE(partitions));
+	mtd_device_register(&(nuc900_nand->mtd), partitions,
+			    ARRAY_SIZE(partitions));
 
 	platform_set_drvdata(pdev, nuc900_nand);