Merge "cameraserver: remove assumption that status change callbacks must be called from cameraserver process." into rvc-dev am: f00b91b986 am: 89ac84b4a9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11816228

Change-Id: I297b6ddbaf2ad51ea3b147b769c0cc7d04caf45d