fmu: Also take into account actuator group 1

src/drivers/px4fmu/fmu.cpp

@@ -542,7 +542,8 @@ PX4FMU::task_main()
 			if (fds[0].revents & POLLIN) {
 
 				/* get controls - must always do this to avoid spinning */
-				orb_copy(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, _t_actuators, &_controls);
+				orb_copy(_primary_pwm_device ? ORB_ID_VEHICLE_ATTITUDE_CONTROLS :
+					     ORB_ID(actuator_controls_1), _t_actuators, &_controls);
 
 				/* can we mix? */
 				if (_mixers != nullptr) {