airspeed selector: disable beta fusion when not in fixed-wing mode

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>

src/modules/airspeed_selector/airspeed_selector_main.cpp

@@ -463,7 +463,7 @@ void AirspeedModule::update_wind_estimator_sideslip()
 	/* update wind and airspeed estimator */
 	_wind_estimator_sideslip.update(_time_now_usec);
 
-	if (_vehicle_local_position_valid && att_valid) {
+	if (_vehicle_local_position_valid && att_valid && !_vtol_vehicle_status.vtol_in_rw_mode) {
 		Vector3f vI(_vehicle_local_position.vx, _vehicle_local_position.vy, _vehicle_local_position.vz);
 		Quatf q(_vehicle_attitude.q);