Merge changes from topics "framework-wifi-test-defaults",...

Merge changes from topics "framework-wifi-test-defaults", "frameworkwifiapitests-mk-to-bp", "wifitrackerlibtests-access-hidden-apis"

* changes:
  Formalize WifiConfiguration#getIpConfiguration()
  WifiTrackerLibTests: grant access to Wifi @hide APIs
  ConnectivityManagerTest: grant access to Wifi @hide APIs
  FrameworksWifiApiTests: build against framework-wifi
  framework-wifi: default build rule for tests
  Convert FrameworksWifiApiTests mk to bp