build yocto for allwiner v3s
user# cd ~
user# mkdir yocto
user# cd yocto
user# git clone -b zeus git://git.yoctoproject.org/poky.git
user# cd poky
user# git clone -b zeus https://github.com/openembedded/meta-openembedded.git
user# git clone -b zeus https://github.com/meta-qt5/meta-qt5.git
user# git clone -b zeus https://github.com/ninhnn2/meta-v3s.git
user# source oe-init-build-env build-v3s
user# cp ../meta-v3s/conf/example/zeus/local.conf ./conf/
user# cp ../meta-v3s/conf/example/zeus/bblayers.conf ./conf/
user# bitbake qt5-image