hidl2aidl: conversion of gatekeeper hidl to aidl

Conversion of the gatekeeper hidl interface to stable aidl interface.

Bug: 205760843
Test: run vts -m VtsHalGatekeeperTarget
Change-Id: I44f554e711efadcd31de79b543f42c0afb27c23c
diff --git a/public/hal_gatekeeper.te b/public/hal_gatekeeper.te
index b918f88..fc23e64 100644
--- a/public/hal_gatekeeper.te
+++ b/public/hal_gatekeeper.te
@@ -1,6 +1,8 @@
 binder_call(hal_gatekeeper_client, hal_gatekeeper_server)
 
 hal_attribute_hwservice(hal_gatekeeper, hal_gatekeeper_hwservice)
+hal_attribute_service(hal_gatekeeper, hal_gatekeeper_service)
+binder_call(hal_gatekeeper_server, servicemanager)
 
 # TEE access.
 allow hal_gatekeeper tee_device:chr_file rw_file_perms;