Merge changes from topic "wifi_stack_in_network_stack_process"

* changes:
  wifi-service: Add CleanSpec.mk for deleting in process .rc & .apk files
  wifi_inprocess.rc: Rewrite configstore file permissions
  wifi_stack: Move to network_stack process
tree: f44ca05903bd065632607ade96d92bb272ba6cde
  1. service/
  2. PREUPLOAD.cfg