Camera: Validate physical camera related metadata field from legacy HAL

Make sure that num_physcam_metadata, physcam_ids, and physcam_metadata
returned from process_capture_result is sane.

Test: LogicalCameraDeviceTest
Bug: 77218595
Change-Id: Ic4d9823569fb86b20ab2ab21edfc32a0e9f5c9c7
2 files changed