brcm47xx: update mtd drivers

This backports some patches from linux upstream.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 39249

target/linux/brcm47xx/patches-3.10/020-mtd-bcm47xxpart-handle-malloc-failures.patch

@@ -0,0 +1,30 @@
+From 99b1d1887fee36ef9ff5d2ee24f0cf3e8c172104 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 13 Oct 2013 22:53:49 +0200
+Subject: [PATCH] mtd: bcm47xxpart: handle malloc failures
+
+Handle return NULL in malloc.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+Signed-off-by: Brian Norris <computersforpeace@gmail.com>
+---
+ drivers/mtd/bcm47xxpart.c |    7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/mtd/bcm47xxpart.c
++++ b/drivers/mtd/bcm47xxpart.c
+@@ -71,7 +71,14 @@ static int bcm47xxpart_parse(struct mtd_
+ 	/* Alloc */
+ 	parts = kzalloc(sizeof(struct mtd_partition) * BCM47XXPART_MAX_PARTS,
+ 			GFP_KERNEL);
++	if (!parts)
++		return -ENOMEM;
++
+ 	buf = kzalloc(BCM47XXPART_BYTES_TO_READ, GFP_KERNEL);
++	if (!buf) {
++		kfree(parts);
++		return -ENOMEM;
++	}
+ 
+ 	/* Parse block by block looking for magics */
+ 	for (offset = 0; offset <= master->size - blocksize;