linux/3.3: avoid recursive calling of mtd_writev in the block2mtd driver

Should fix #11513. Tested with the x86/generic squashfs image within a VM.

SVN-Revision: 31841

target/linux/generic/patches-3.3/443-block2mtd-avoid-recursive-call-of-mtd_writev.patch

@@ -0,0 +1,10 @@
+--- a/drivers/mtd/devices/block2mtd.c
++++ b/drivers/mtd/devices/block2mtd.c
+@@ -388,7 +388,6 @@ static struct block2mtd_dev *add_device(
+ 	dev->mtd.flags = MTD_CAP_RAM;
+ 	dev->mtd.erase = block2mtd_erase;
+ 	dev->mtd.write = block2mtd_write;
+-	dev->mtd.writev = mtd_writev;
+ 	dev->mtd.sync = block2mtd_sync;
+ 	dev->mtd.read = block2mtd_read;
+ 	dev->mtd.priv = dev;