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

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

Change-Id: Ic430ca0e70f98447d7ac33b51024f5113a6b7c3f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>