hidl2aidl: conversion of gatekeeper hidl to aidl am: 82599ddafa am: caf275b15b am: f55dd8e1b6

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2161976

Change-Id: Id5da0f9a7b8acd1be39a0663ac64236bff1df5a0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>