Merge "Add an option for vendors to provide a camera extensions proxy" into...

Merge "Add an option for vendors to provide a camera extensions proxy" into sc-dev am: b4d7c251 am: 13349aac

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15001230

Change-Id: Idd24344640fdb1310ad1444ca7c939161d9634cb