Tv PiP: allow launcher to identify custom actions.

Adds a boolean extra to custom actions (app defined or media actions).

Bug: 274444475
Test: manual - custom actions should have the extra set to true
Change-Id: I98c1dba5ea8ef56b9c8b346f1d00deabde5d1dc1

libs/WindowManager/Shell/src/com/android/wm/shell/pip/tv/TvPipCustomAction.java

@@ -86,6 +86,7 @@ public class TvPipCustomAction extends TvPipAction {
         Bundle extras = new Bundle();
         extras.putCharSequence(Notification.EXTRA_PICTURE_CONTENT_DESCRIPTION,
                 mRemoteAction.getContentDescription());
+        extras.putBoolean(Notification.EXTRA_CONTAINS_CUSTOM_VIEW, true);
         builder.addExtras(extras);
 
         builder.setSemanticAction(isCloseAction()