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

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

Change-Id: Ifb16affeca8ad17aead5a0411948bf1d8d0c10ee
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>