Merge "Freeze HIDL HALs for Android T." into tm-dev am: dced9190 am: c7dfff9b

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



Change-Id: Ia35fab65438a27664b607cb105d13c6f2e3d341e
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>