camera: Add FMQ support for camera2 impl SDK

Bug:  362791857

Flag: EXEMPT: com.android.internal.camera.flags.fmq_metadata used in
      cameraserver

Test: Use GCA with FMQ metadata
Test: Camera CTS

Change-Id: Iec434c7cdf00edb85c71d096cb0e57e3b5c9d3a7
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>