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

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

Change-Id: Iebf24729625f681c6e12a6a3532c5c297d904276
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>