vtol adjust landing setpoint

src/modules/navigator/land.cpp

@@ -86,10 +86,8 @@ Land::on_active()
 	    _navigator->get_vstatus()->in_transition_mode) {
 		struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
 
-		// create a virtual wp 1m in front of the vehicle to track during the backtransition
-		waypoint_from_heading_and_distance(_navigator->get_global_position()->lat, _navigator->get_global_position()->lon,
-						   _navigator->get_local_position()->heading, 1.f,
-						   &pos_sp_triplet->current.lat, &pos_sp_triplet->current.lon);
+		// create a wp in front of the VTOL until which the VTOL in multicopter mode is able to decelerate
+		_navigator->calculate_breaking_stop(pos_sp_triplet->current.lat, pos_sp_triplet->current.lon);
 
 		_navigator->set_position_setpoint_triplet_updated();
 	}