Merge "Make IRPC v3 optionally backwards compatible" am: 79b72fece3 am: b240b680b4

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2322763

Change-Id: I2a0e8380c007d57b6b86d47d252b60f10dbd772f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>