build-avalon-image.sh: create all folder at begin
build-avalon-image.sh: create all folder at begin

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