am b06b3c76: Merge changes If48f5ed6,Ic63a6f73

* commit 'b06b3c761c1cc90d1b3ff6b4ae5ab2e16cb8238c':
  emulator opengl: first commit of gralloc implementation.
  emulator opengl: OpenglSystemCommon library shared between gralloc/EGL/GLES.