Fix SurfaceView not redrawing when it should

Summary:
Like its non-Nodes counterpart, FlatARTSurfaceViewShadowNode
should redraw when extra updates are collected.

Reviewed By: sriramramani

Differential Revision: D4355702

fbshipit-source-id: 6e7b90360958481f5bef9b806eca9fa888cb6a32

ReactAndroid/src/main/java/com/facebook/react/flat/FlatARTSurfaceViewShadowNode.java

@@ -48,6 +48,7 @@ import com.facebook.react.views.art.ARTVirtualNode;
   @Override
   public void onCollectExtraUpdates(UIViewOperationQueue uiUpdater) {
     super.onCollectExtraUpdates(uiUpdater);
+    drawOutput();
     uiUpdater.enqueueUpdateExtraData(getReactTag(), this);
   }