Specify the expected contents of "verifiedBootKey". am: 9caca7e7f0

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3359914

Change-Id: I29b3412e6e18d2817741674c45d3984e0afd588a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>