Vehicle.cc: start joystick when JoystickEnabled changes

src/Vehicle/Vehicle.cc

@@ -2298,6 +2298,7 @@ bool Vehicle::joystickEnabled(void)
 void Vehicle::setJoystickEnabled(bool enabled)
 {
     _joystickEnabled = enabled;
+    _startJoystick(_joystickEnabled);
     _saveSettings();
     emit joystickEnabledChanged(_joystickEnabled);
 }