Allow grilservice apps to access app_api_service

Sync solution from ag/12369854 which allow grilservice_app to use
app_api_service.
The tethering_service is one kind of app_api_service.
The activity_service is also one kind of app_api_service.

Log from b/160938857
avc:  denied  { find } for pid=3826 uid=10124 name=tethering scontext=u:r:grilservice_app:s0:c124,c256,c512,c768 tcontext=u:object_r:tethering_service:s0 tclass=service_manager permissive=0

Bug: 169057554
Test: the device can boot to home. check if avc denied from grilservice_app.
Change-Id: I4567820d0bc2c69bc634afb94e2cd7c17174151e
1 file changed
tree: 7573e10f6c02fad7161fde6647d49f38db739682
  1. OWNERS
  2. coral-sepolicy.mk
  3. private/
  4. public/
  5. tracking_denials/
  6. vendor/