Merge changes from topic "app_visible_hals" into oc-mr1-dev

* changes:
  DO NOT MERGE: use 'expandattribute' for untrusted_app_visible_hwservice
  DO NOT MERGE: Add a way to allow untrusted_apps to talk to halserver domains
  DO NOT MERGE: Revert "Revert "Remove neverallow preventing hwservice access for apps.""