Merge "cameraserver: remove assumption that status change callbacks must be...

Merge "cameraserver: remove assumption that status change callbacks must be called from cameraserver process." into rvc-dev am: f00b91b9 am: 0ab3f6cf am: 6881ccee am: 33da4491

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

Change-Id: Idcd12f945a0611c5a140b07c418e585253c26d16