kernel: add missing symbols for 3.12

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38826 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: add fix to block2mtd driver for modified error logging

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38827 3c298f89-4303-0410-b956-a3cf2f4a3e73