AP_Vehicle: treat goal publisher relying on get_target_location as ex…

…ternal control

Signed-off-by: Ryan Friedman <[email protected]>

libraries/AP_Vehicle/AP_Vehicle.h

@@ -176,6 +176,8 @@ class AP_Vehicle : public AP_HAL::HAL::Callbacks {
     virtual bool start_takeoff(const float alt) { return false; }
     // Method to control vehicle position for use by external control
     virtual bool set_target_location(const Location& target_loc) { return false; }
+    // Get target location for use by external control
+    virtual bool get_target_location(Location& target_loc) { return false; }
 #endif // AP_SCRIPTING_ENABLED || AP_EXTERNAL_CONTROL_ENABLED
 #if AP_SCRIPTING_ENABLED
     /*
@@ -195,8 +197,6 @@ class AP_Vehicle : public AP_HAL::HAL::Callbacks {
     virtual void set_rudder_offset(float rudder_pct, bool run_yaw_rate_controller) {}
     virtual bool nav_scripting_enable(uint8_t mode) {return false;}
 
-    // get target location (for use by scripting)
-    virtual bool get_target_location(Location& target_loc) { return false; }
     virtual bool update_target_location(const Location &old_loc, const Location &new_loc) { return false; }
 
     // circle mode controls (only used by scripting with Copter)