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: I7f621cbd65f1b6c9adf93b70512a2f5916f7d2e1
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>