[automerger skipped] RESTRICT AUTOMERGE: Fix HMAC Compare time attack am: ca8d670c16 am: 863b6b563d -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/21804206

Change-Id: I5ee5865b62b223725de4f4730a7e95e2008dd937
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>