Merge "Add a README for Remote Key Provisioning." into tm-dev am: 8c1586bc4f am: 0d4ab8520d am: 949b6bbb96 am: 123d123c1a

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/18635577

Change-Id: Ic96c24a4097b2fb20daa46eaec3ea47cd4208b07
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>