[Wi-Fi] Fix AddAppNetworksFragmentTest one unit test failed case am: d9644462fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/11997024

Change-Id: I8ad42ac8e1dad3104fca5fd03a2707b50ff50337

tests/robotests/src/com/android/settings/wifi/addappnetworks/AddAppNetworksFragmentTest.java

@@ -265,6 +265,9 @@ public class AddAppNetworksFragmentTest {
 
     @Test
     public void onDestroy_quitWorkerThread() {
+        addOneSpecifiedRegularNetworkSuggestion(mNewWpaSuggestionEntry);
+        setUpBundle(mFakedSpecifiedNetworksList);
+        setupFragment();
         mAddAppNetworksFragment.mWorkerThread = mock(HandlerThread.class);
 
         try {