drm/virtio: Use UUID API for importing the UUID

There is import_uuid() function which imports u8 array to the uuid_t.
Use it instead of open coding variant.

This allows to hide the uuid_t internals.
Reviewed-by: David Stevens <stevensd@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20201013132714.70973-1-andriy.shevchenko@linux.intel.comSigned-off-by: Gerd Hoffmann <kraxel@redhat.com>

drivers/gpu/drm/virtio/virtgpu_vq.c

@@ -1141,7 +1141,7 @@ static void virtio_gpu_cmd_resource_uuid_cb(struct virtio_gpu_device *vgdev,
 
 	if (resp_type == VIRTIO_GPU_RESP_OK_RESOURCE_UUID &&
 	    obj->uuid_state == STATE_INITIALIZING) {
-		memcpy(&obj->uuid.b, resp->uuid, sizeof(obj->uuid.b));
+		import_uuid(&obj->uuid, resp->uuid);
 		obj->uuid_state = STATE_OK;
 	} else {
 		obj->uuid_state = STATE_ERR;