gbm_mesa: add camera usage flags for DRM_FORMAT_YVU420_ANDROID & DRM_…

…FORMAT_R8

* Needed for UVC USB webcams using external camera HAL
  https://source.android.com/devices/camera/external-usb-cameras
* DRM_FORMAT_YVU420_ANDROID needed for preview,
  DRM_FORMAT_R8 for capture.

Change-Id: I92b82e4f22c7957da6293eaf67537639eb2f6e7b

gbm_mesa_driver/gbm_mesa_internals.cpp

@@ -85,9 +85,16 @@ int gbm_mesa_driver_init(struct driver *drv)
 
 	drv_modify_combination(drv, DRM_FORMAT_NV12, &linear_metadata,
 			       BO_USE_HW_VIDEO_ENCODER | BO_USE_HW_VIDEO_DECODER |
-				   BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
+			       BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
+
 	drv_modify_combination(drv, DRM_FORMAT_NV21, &linear_metadata, BO_USE_HW_VIDEO_ENCODER);
 
+	drv_modify_combination(drv, DRM_FORMAT_YVU420_ANDROID, &linear_metadata,
+			       BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
+
+	drv_modify_combination(drv, DRM_FORMAT_R8, &linear_metadata,
+			       BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
+
 	return drv_modify_linear_combinations(drv);
 }