Hide carrier service package in Wi-Fi data usage settings

- When there is no specified SubscriptionInfo, Wi-Fi data usage will be displayed. In this case, the carrier service package also needs to be hidden.

- Fix failing test cases in DataUsageListTest

Bug: 273167633
Bug: 280021214
Test: manual test

Change-Id: I66ff8a28d9e7f7db77c8a210cb36676a07fc2c7d

tests/robotests/src/com/android/settings/datausage/DataUsageListTest.java

@@ -104,6 +104,7 @@ public class DataUsageListTest {
         ReflectionHelpers.setField(mDataUsageList, "services", mNetworkServices);
         doReturn(mLoaderManager).when(mDataUsageList).getLoaderManager();
         mDataUsageList.mLoadingViewController = mock(LoadingViewController.class);
+        doNothing().when(mDataUsageList).updateSubscriptionInfoEntity();
     }
 
     @Test