Vehicle: move _doSetHomeTerrainReceived to private slots

src/Vehicle/Vehicle.h

@@ -1056,6 +1056,7 @@ private slots:
     void _orbitTelemetryTimeout             ();
     void _updateFlightTime                  ();
     void _gotProgressUpdate                 (float progressValue);
+    void _doSetHomeTerrainReceived          (bool success, QList<double> heights);
 
 private:
     void _loadJoystickSettings          ();
@@ -1120,9 +1121,6 @@ private:
 
     static void _rebootCommandResultHandler(void* resultHandlerData, int compId, const mavlink_command_ack_t& ack, MavCmdResultFailureCode_t failureCode);
 
-    // This is called after we get terrain data triggered from a doSetHome()
-    void _doSetHomeTerrainReceived      (bool success, QList<double> heights);
-
     int     _id;                    ///< Mavlink system id
     int     _defaultComponentId;
     bool    _offlineEditingVehicle = false; ///< true: This Vehicle is a "disconnected" vehicle for ui use while offline editing