upnpbrowser: fix neutrino mode while playing audio

Origin commit data
------------------
Commit: 81078780db
Author: vanhofen <vanhofen@gmx.de>
Date: 2017-03-27 (Mon, 27 Mar 2017)

Origin message was:
------------------
- upnpbrowser: fix neutrino mode while playing audio

src/gui/upnpbrowser.h

@@ -124,6 +124,7 @@ class CUpnpBrowserGui : public CMenuTarget, public CListHelpers
 	void paintItem2DetailsLine(int pos);
 
 	void updateTimes(const bool force = false);
+	void updateMode();
 	void playAudio(std::string name, int type);
 	void stopAudio();
 	void showPicture(std::string name);