[Wi-Fi] Split WifiEntryCallback into separate callbacks for each action

This change uses splitted WifiEntry callbacks.

Bug: 70983952
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.wifi
Change-Id: I3b8e55b11d4f71e5548b4da82104dac1f5089b1b

src/com/android/settings/wifi/details2/WifiPrivacyPreferenceController2.java

@@ -88,7 +88,7 @@ public class WifiPrivacyPreferenceController2 extends BasePreferenceController i
             // To activate changing, we need to reconnect network. WiFi will auto connect to
             // current network after disconnect(). Only needed when this is connected network.
             if (mWifiEntry.getConnectedState() == WifiEntry.CONNECTED_STATE_CONNECTED) {
-                mWifiEntry.disconnect();
+                mWifiEntry.disconnect(null /* callback */);
             }
         }
         updateSummary((DropDownPreference) preference, privacy);