Allow CDD required properties to be absent in VTS. am: 076976eea2 am: 4ccffdb997 am: 7e87c5c703

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2779277

Change-Id: Ie37a7bbc0e87055b4abdb82475b54466bb8efb70
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>