Merge "Camera: Add missing characteristics for using buffermanager in ExternalCamera" into main am: 4103ef0c5a

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2884368

Change-Id: Idf40f617b46e3d156688ff3dce5cc1869e4db748
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>