Merge "Freeze HIDL HALs for Android T." into tm-dev am: dced919030 am: 4cd6d23284

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/17920389

Change-Id: If1efc8ac8bbbe8dc5241db3f7ca3d2ca4cec3d2c
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>