Valgrind: Fix Memcheck startup on remote linux

Remote CallGrind is still dysfunctional.

Change-Id: Ib9ab537dc068c94c7e61ac48b1a4b9d655ccb60f
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/valgrind/memcheckengine.h

@@ -60,6 +60,7 @@ private:
     void appendLog(const QByteArray &data);
 
     const bool m_withGdb;
+    QHostAddress m_localServerAddress;
 };
 
 } // namespace Internal