Fix filter bug for non-internal app filtering.

By default, the filter would show all non-categorized apps. This,
however, regressed the external storage apps view which does not have
categorization (yet). By adding back in a legacy option to use the old
purely UUID filtering, we can fix the regression.

Change-Id: I72d8d3bc08fbdff53374eb1e973bce9f8d7e2e79
Fixes: 63542896
Test: Settings unit test

src/com/android/settings/deviceinfo/PrivateVolumeSettings.java

@@ -473,6 +473,9 @@ public class PrivateVolumeSettings extends SettingsPreferenceFragment {
                         StorageUseActivity.class.getName());
                 args.putString(ManageApplications.EXTRA_VOLUME_UUID, mVolume.getFsUuid());
                 args.putString(ManageApplications.EXTRA_VOLUME_NAME, mVolume.getDescription());
+                args.putInt(
+                        ManageApplications.EXTRA_STORAGE_TYPE,
+                        ManageApplications.STORAGE_TYPE_LEGACY);
                 intent = Utils.onBuildStartFragmentIntent(getActivity(),
                         ManageApplications.class.getName(), args, null, R.string.apps_storage, null,
                         false, getMetricsCategory());