The helper for slice of carrier and non-Carrier, used by ProviderModelSlice.

create a helper file.
create a res/drawable/ic_signal_strength_zero_bar_no_internet.xml
create string at res/values/strings.xml

Bug: 173971144
Test: atest ProviderModelSliceHelperTest
Change-Id: I7f63a6b04784325989e776cb140017314ebde4ce

src/com/android/settings/Utils.java

@@ -1156,5 +1156,4 @@ public final class Utils extends com.android.settingslib.Utils {
     public static boolean isProviderModelEnabled(Context context) {
         return FeatureFlagUtils.isEnabled(context, FeatureFlagUtils.SETTINGS_PROVIDER_MODEL);
     }
-
 }