Fix work tab app doesn't launch correct user intent

- Pass user.getIndentifier() to intent

Fixes: 147357696
Test: 1. go to Settings -> Storage -> Music&Audio
      2. switch to work tab
      3. tab "Audio files"
      4. should display work profile files

Change-Id: I0d2883c45eb7b883adbaf034c0a49c5e52ba82f6

src/com/android/settings/applications/manageapplications/MusicViewHolderController.java

@@ -84,7 +84,7 @@ public class MusicViewHolderController implements FileViewHolderController {
                 DocumentsContract.buildRootUri(AUTHORITY_MEDIA, "audio_root"),
                 DocumentsContract.Root.MIME_TYPE_ITEM);
         intent.addCategory(Intent.CATEGORY_DEFAULT);
-        intent.putExtra(Intent.EXTRA_USER_ID, mUser);
+        intent.putExtra(Intent.EXTRA_USER_ID, mUser.getIdentifier());
         Utils.launchIntent(fragment, intent);
     }
 }