camera2: Add physical camera id in CaptureResult

- Add physical camera id in capture result.
- Add ability for app to get metadata key/value for physical camera.
- Batch physical and logical camera result within one processCaptureResult call.

Test: testLogicalCamera CTS test
Bug: 64691172
Change-Id: Ic67275aa5b44cbcad7ef98409e4365ee08989736