Add data collection and metrics for Media Output Switcher - 2/n

Fixes: 147792668
Test: ./out/host/linux-x86/bin/statsd_testdrive Atom_ID
Change-Id: I1a34228da75c197663bcfe909c961e57665590d4

src/com/android/settings/media/MediaOutputSlice.java

@@ -375,7 +375,7 @@ public class MediaOutputSlice implements CustomSliceable {
 
     @Override
     public Class getBackgroundWorkerClass() {
-        return MediaDeviceUpdateWorker.class;
+        return MediaOutputSliceWorker.class;
     }
 
     private boolean isVisible() {