Add remote access HAL interface and ref impl. am: 7a5283fd

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2269305



Change-Id: I3c61306d7ceccc1fdcb3a20d88236011e9f82585
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>