Add preference for WiFi MAC randomization.

Preference visibility contolled by feature flag -
settings_wifi_mac_randomization.

Bug: 1227787
Test: RunSettingsRoboTests

Change-Id: Ibad8d3ea2bfa3879acc1ec883b8c03f1979bde45

src/com/android/settings/wifi/details/WifiNetworkDetailsFragment.java

@@ -135,6 +135,10 @@ public class WifiNetworkDetailsFragment extends DashboardFragment {
 
         controllers.add(mWifiDetailPreferenceController);
         controllers.add(new WifiMeteredPreferenceController(context, mAccessPoint.getConfig()));
+        WifiPrivacyPreferenceController preferenceController = new WifiPrivacyPreferenceController(
+                context);
+        preferenceController.setWifiConfiguration(mAccessPoint.getConfig());
+        controllers.add(preferenceController);
 
         return controllers;
     }