Fixed an issue where the setVisibility wasn't annotated

The setVisibility method wasn't properly using the
@RemotableViewMethod and therefore certain notifications
could not be sent.

Change-Id: Ic5fce695486d53f1b327d3137cbe67beacfaafb9

core/java/com/android/internal/widget/CachingIconView.java

@@ -187,6 +187,7 @@ public class CachingIconView extends ImageView {
     }
 
     @Override
+    @RemotableViewMethod
     public void setVisibility(int visibility) {
         mDesiredVisibility = visibility;
         updateVisibility();