Merge "Revert "mark more hals as optional in frozen matrix."" am: b1718de4ad am: 1706a4dd3f am: 44179bdca6 am: efbbb2d2f9

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/1474816

Change-Id: Ia743e58022dde6f68f6105b82ae7d6303a618ae2