Add disabled by policy message as empty views in preferencefragment.

Change-Id: I296dc02c8e5cbea74f8415f4c8c5723f85e20b5b

src/com/android/settings/wifi/WifiSettingsForSetupWizard.java

@@ -144,7 +144,7 @@ public class WifiSettingsForSetupWizard extends WifiSettings {
     }
 
     @Override
-    protected TextView initEmptyView() {
+    protected TextView initEmptyTextView() {
         final LayoutInflater inflater = LayoutInflater.from(getActivity());
         mEmptyFooter = (TextView) inflater.inflate(R.layout.setup_wifi_empty, getListView(), false);
         return mEmptyFooter;