Merge "Camera: Allow synthetic extension metadata" into tm-dev am: eb177cd5...

Merge "Camera: Allow synthetic extension metadata" into tm-dev am: eb177cd5 am: 53b01eb3 am: 29a9bf7f am: 4a17efe4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18801658



Change-Id: I7867c0be4bd4fd4d1e3cab144e3540d99e4d3932
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>