Fix bug #15434475 Developer Options do not show immediately after activating them

- allow Dashboard categories reloading

Change-Id: I02d9f1e8ed4d8b8b670835a8d717c6c08b49fe05

src/com/android/settings/SettingsActivity.java

@@ -630,6 +630,7 @@ public class SettingsActivity extends Activity
         mDevelopmentPreferencesListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
             @Override
             public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+                setNeedToRebuildCategories(true);
                 invalidateCategories();
             }
         };