Merge "Merge "Camera: Disallow concurrent extension sessions" into sc-dev am:...

Merge "Merge "Camera: Disallow concurrent extension sessions" into sc-dev am: efb3fafe am: 0f4db56a" into sc-v2-dev-plus-aosp am: 077c9ac3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14343769

Change-Id: I447dcd7f813b511e640aa489920c8903560efaa5