Fix account type dialog re-creation on orientation change.

Bug: 4499512

Dummy activity that launches ChooseAccountActivity was re-launching it on orientation
changes. Make sure that it only launches it one time.

Change-Id: I764a59eaefc3ce4546330ed1b994d88b8703ce80

src/com/android/settings/accounts/AddAccountSettings.java

@@ -72,6 +72,7 @@ public class AddAccountSettings extends Activity {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
         final String[] authorities =
                 getIntent().getStringArrayExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY);
         final String[] accountTypes =