Merge "Change optional="false" to "true" in compat matrix 7" am: adf99047d5 am: 8ab633b73c am: dbc7c523b1

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2402196

Change-Id: I6457afc230f0b7756a0fc2444c45fe8ed5e9d673
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>