SurfaceControlViewHost: Clone control for SurfacePackage

Otherwise the results can be quite confusing, each time we call
getSurfacePackage it returns a new SurfacePackage but after releasing
the first one all the others become invalid. This normally isn't
noticed as SurfaceControlViewHost is frequently used only in
cross process scenarios so the additional step of parcelling
can prevent this issue from occuring.

Bug: 196926363
Test: SurfaceViewSurfacePackageValidatorTest#testSurfacePackageNoFlicker
Change-Id: Id77f6daab4bb80d4d23d40d24d74b39bd694f350

core/java/android/view/SurfaceControlViewHost.java

@@ -328,7 +328,8 @@ public class SurfaceControlViewHost {
      */
     public @Nullable SurfacePackage getSurfacePackage() {
         if (mSurfaceControl != null && mAccessibilityEmbeddedConnection != null) {
-            return new SurfacePackage(mSurfaceControl, mAccessibilityEmbeddedConnection,
+            return new SurfacePackage(new SurfaceControl(mSurfaceControl, "getSurfacePackage"),
+                mAccessibilityEmbeddedConnection,
                 mWm.getFocusGrantToken(), mRemoteInterface);
         } else {
             return null;