sunxi: add initial 3.18 support

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



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43337 3c298f89-4303-0410-b956-a3cf2f4a3e73
sunxi: add config for 3.18

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



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43338 3c298f89-4303-0410-b956-a3cf2f4a3e73