WifiStack: Use new hasUserRestrictionForUser @SystemApi

Wifi stack needs a multi-user version of
UserManager.hasUserRestriction().

Bug: 142888959
Test: atest com.android.server.wifi
Change-Id: I0d9668194fa45b48235ee819b01e17fa8cbeda34
6 files changed
tree: 01e24151403f0a4da2f767c01ff1cd8354b928ac
  1. service/
  2. PREUPLOAD.cfg