Merge "Reduce contention for renderengine's async ops." into sc-dev am:...

Merge "Reduce contention for renderengine's async ops." into sc-dev am: 9c187a35 am: c8366e8c am: 87a5b41e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14941380

Change-Id: Ibbb95c9f3b9b1d0365e33a881b35cc845a7a3289