android: add support for vmwgfx

Quickly tested with VMWare Workstation 7.1.4 on Linux with GeForce
GT220.  SurfaceFlinger (the display server and compositor) works.  2D
apps with RGB visual works.  However, due to missing
PIPE_FORMAT_R8G8B8A8_UNORM support, those with RGBA visual do not.
5 files changed