[Freedreno] freedreno + android

[Emil Velikov]

Hello all,

As you may have noticed there are some drm+mesa patches popping up to the
list, essentially allowing freedreno to be build with Android.

As it usually happens I've missed the Cc line on a patch or two, yet you're
welcome to grab the whole series from the following branches
* libdrm:
repo "https://github.com/evelikov/libdrm/" branch "fixes+android-v2"
* mesa:
repo "https://github.com/evelikov/Mesa/" branch "android-inspired-fixes"

Note: in order to actually test freedreno, drm_gralloc will need support for
it. Rob kindly wrote a patch and I'm just waiting for the build to finish and
I'll post it here + link to a repo that can be used.

As I am a bit short on hardware all I can do is to fix build issues. So anyone
interested in getting this working will need to come forward :)

Happy hacking,
-Emil