Merge "identity: Clarify validity period for auth keys." am: 3522198eb4 am: 8be35e964b

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2475025

Change-Id: I031fc284ef5b7ce91ad6462f5c986fe92dfb84d0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>