Update OpenWrt to 15.05 for Avalon6
Update OpenWrt to 15.05 for Avalon6

qinfengling/Avalon-extras,qinfengling/Avalon-extras,Canaan-Creative/Avalon-extras,Canaan-Creative/Avalon-extras,qinfengling/Avalon-extras,qinfengling/Avalon-extras,Canaan-Creative/Avalon-extras,qinfengling/Avalon-extras,Canaan-Creative/Avalon-extras,Canaan-Creative/Avalon-extras,qinfengling/Avalon-extras,Canaan-Creative/Avalon-extras