Camera2: add metadata override

There are interface difference between managed and native side for some
metadata, like Face and JPEG format. we need override them when they are set/get
between native and managed sides.

Also fix some issues in the CameraMetadataTest.

Bug: 10406212

Change-Id: Ibd8be0415968445e711b3ea89f45e1edfa193ee2
4 files changed