Added new RenderControl command to request the host to execute the ChooseConfig functionality. Change-Id: Ib92be313a6df740de69d671c6994ec6cae17ea13
That adds the renderControl API encoder/decoder which is used for guest to host control commands. See system/renderControl_enc/README for more info about the API itself. Change-Id: I2c72803137889d646fbb3d2a56ecdcf94b088f40