identity: VTS: allow for multiple interpretations of AuthKey validity. am: a6fc69d339 am: 8a497eec46

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2485655

Change-Id: I2ea8de0cb7f2df5a466b2e8f2985fd82436997f9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>