Merge pull request #1 from chenbd/master

update "sunxi-board-fex" and "u-boot" version
removed unneeded definition in sunxi.inc
removed unneeded definition in sunxi.inc
Merge branch 'upstream-master' of https://github.com/vonfritz/meta-sunxi into upstream-master
Merge pull request #31 from vonfritz/upstream-master

Upstream master