Add a unit test for remote_prov_utils am: 7a55bb5cf8 am: 4eb7325cfc am: 1e95d7e8eb

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15071132

Change-Id: Ie611ac179e2f459b61a59a32d2a27e4dc0208cb3