Merge "Camera: Allow synthetic extension metadata" into tm-dev am: eb177cd5 am: 53b01eb3 am: 4eb28440 am: 84103384

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



Change-Id: I242f8728e3ce2fbe6a4f9b5de921cae13195413c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>