Merge "ViewRootImpl: Update opaque flag if SurfaceControl changes from relayout" into sc-qpr1-dev am: 8dc8182ad0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15934803

Change-Id: I3b7d501067ccdb716ae892fa4ccd34b2722b7ab7