mtd: mxc_nand: Remove bit-or operation with zero

Doing a bit-or operation with zero is pointless.

Remove this unneeded bit-or.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 7922d31..f507d36 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -1067,8 +1067,7 @@
 
 	/* Blocks to be unlocked */
 	for (i = 0; i < NAND_MAX_CHIPS; i++)
-		writel(0x0 |	(0xffff << 16),
-				NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2));
+		writel(0xffff << 16, NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2));
 
 	writel(0, NFC_V3_IPC);