Merge "compatibility matrices: drop optional=true. (4~8)" into main am: 1014102e am: ae3e2648

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2909099



Change-Id: I007171cc585da54592944d803e538359dde1df88
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>