alarm/uboot-sunxi to 2014.07-1

- Move uboot-sunix over to the u-boot-sunxi repository at git.denx.de
- As it's behind the stable repsitory merge git://git.denx.de/u-boot.git up to tag v2014.07
- While there's full support for all sun4i to sun7i devices, not all of them are added to boards.cfg --> add-more-devices.diff
- Adapted alarm.patch to 2014.07. There's no default environment in the new version and therefore no autobooting. As I couldn't figure out how to set a default environment I just readded the old and working one.

Successfully tested on Cubieboard2