Force carrier network change anim onto UI thread

Fixes a bug where RenderThread was constantly scheduling frames,
but didn't actually start the animation. Also fixes some jank
while the animation is playing.

Bug: 27396097
Change-Id: I353d60633eeef1a4f3bbfbeddb58f9703debe293

packages/SystemUI/src/com/android/systemui/statusbar/SignalClusterView.java

@@ -23,6 +23,7 @@ import android.content.res.Resources;
 import android.graphics.Color;
 import android.graphics.Rect;
 import android.graphics.drawable.Animatable;
+import android.graphics.drawable.AnimatedVectorDrawable;
 import android.graphics.drawable.Drawable;
 import android.telephony.SubscriptionInfo;
 import android.util.ArraySet;
@@ -636,6 +637,9 @@ public class SignalClusterView
 
             if (drawable instanceof Animatable) {
                 Animatable ad = (Animatable) drawable;
+                if (ad instanceof AnimatedVectorDrawable) {
+                    ((AnimatedVectorDrawable) ad).forceAnimationOnUI();
+                }
                 if (!ad.isRunning()) {
                     ad.start();
                 }