The provider model slice carrier toggle is broke.

The slice doesn't upload subId for TelephonyManager and
the listeners.

Bug: 177385874
Test: (PASS)atest NetworkProviderWorkerTest
(PASS)atest ProviderModelSliceTest
(PASS)atest ProviderModelSliceHelperTest

Change-Id: Icc8a7793204de2e2eadd0454edf50e466821b8f9

src/com/android/settings/network/ProviderModelSliceHelper.java

@@ -63,7 +63,7 @@ import java.util.stream.Collectors;
 public class ProviderModelSliceHelper {
     private static final String TAG = "ProviderModelSlice";
     private final SubscriptionManager mSubscriptionManager;
-    private final TelephonyManager mTelephonyManager;
+    private TelephonyManager mTelephonyManager;
     protected final Context mContext;
     private CustomSliceable mSliceable;
 
@@ -277,4 +277,16 @@ public class ProviderModelSliceHelper {
                 .map(String::trim)
                 .collect(Collectors.toSet());
     }
+
+    /**
+     * To update the telephony with subid.
+     */
+    public void updateTelephony() {
+        if (mSubscriptionManager == null || mSubscriptionManager.getDefaultDataSubscriptionId()
+                == mSubscriptionManager.INVALID_SUBSCRIPTION_ID) {
+            return;
+        }
+        mTelephonyManager = mTelephonyManager.createForSubscriptionId(
+                mSubscriptionManager.getDefaultDataSubscriptionId());
+    }
 }