UI: Fix typo with SetSourceName function

The SetSoureName in the adv-audio-control.hpp had newName
misspelled as newNamw.

UI/adv-audio-control.hpp

@@ -85,7 +85,7 @@ public slots:
 	void SourceMonitoringTypeChanged(int type);
 	void SourceMixersChanged(uint32_t mixers);
 	void SourceBalanceChanged(int balance);
-	void SetSourceName(QString newNamw);
+	void SetSourceName(QString newName);
 
 	void volumeChanged(double db);
 	void percentChanged(int percent);