sunxi-mali: overhaul recipe

The most important change is shipping the .so files in ${PN}, this is
needed for things like xf86-video-fbturbo to work properly. Also disable
the QA check this triggers.

Other fixes include:

* make recipe conform to OE style guide
* update to latest git
* remove unused INC_PR
* RPROVIDES_* is about packages, not about files, remove it
* Use default git protocol ('git') instead of 'http', which isn't
  officially supported by github
* Add libUMP.so symlink for xf86-video-fbturbo

Runtime tested on olinuxino-a13/Angstrom

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>