emulator opengl: first commit of gralloc implementation.

This is the emulator opengl implementation of gralloc.

NOTE that it is currently build only if BUILD_EMULATOR_OPENGL_DRIVER
is defined, This is because the other driver peices (EGL/GLES) are
still missing.

Change-Id: If48f5ed619df6efb00cb4e590d99ce49d87875f6
2 files changed