Merge "All hals are marked optional in compatibility matrices (U)" am: a9259faf

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2515750



Change-Id: I94b77a53001807d163eab308ff241e5b026221a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>