commander: workaround to get calibration status

If mavlink_log calls follow close after each other a later one will
replace the previous one. Therefore do a quick usleep to get the
calibration status out the door.

src/modules/commander/calibration_routines.cpp

@@ -476,6 +476,8 @@ calibrate_return calibrate_from_orientation(orb_advert_t *mavlink_log_pub,
 		}
 
 		mavlink_and_console_log_info(mavlink_log_pub, CAL_QGC_ORIENTATION_DETECTED_MSG, detect_orientation_str(orient));
+		// TODO FIXME: sleep here, so that QGC receives this with higher chance.
+		usleep(1000);
 		orientation_failures = 0;
 
 		// Call worker routine