Merge "Add docs for ASurfaceControl default behavior" into udc-dev am:...

Merge "Add docs for ASurfaceControl default behavior" into udc-dev am: 85bffd53 am: 0f4b3ed6 am: 890c22ef am: da6c7b9d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22871136



Change-Id: I8cd6fffb80aefa7049a3c3d3efd481bf012aefcb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>