Fuse flow only if it is activated in param LPE_FUSION

src/modules/local_position_estimator/BlockLocalPositionEstimator.cpp

@@ -279,7 +279,6 @@ void BlockLocalPositionEstimator::update()
 	_lastArmedState = armedState;
 
 	// see which updates are available
-	bool flowUpdated = _sub_flow.updated();
 	bool paramsUpdated = _sub_param_update.updated();
 	bool baroUpdated = false;
 
@@ -297,6 +296,7 @@ void BlockLocalPositionEstimator::update()
 		}
 	}
 
+	bool flowUpdated = (_fusion.get() & FUSE_FLOW) && _sub_flow.updated();
 	bool gpsUpdated = (_fusion.get() & FUSE_GPS) && _sub_gps.updated();
 	bool visionUpdated = (_fusion.get() & FUSE_VIS_POS) && _sub_vision_pos.updated();
 	bool mocapUpdated = _sub_mocap.updated();