Fix 6804479: "Emergency calls only" in notification shade

Add an additional codepath to the "no connectivity" logic in
NetworkController to allow the PLMN bubble up from the
GsmServiceStateTracker, where R.string.emergency_calls_only
is returned if we're in emergency call mode.

Bug: 6804479
Change-Id: I0a77261e4393cc0dc32bae3e631ef196b2342f06

Author: dsandler

packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java

@@ -932,10 +932,12 @@ void refreshViews() {
 
             if (mDataConnected) {
                 mobileLabel = mNetworkName;
-            } else if (mConnected) {
-                if (hasService()) {
+            } else if (mConnected || mServiceState.isEmergencyOnly()) {
+                if (hasService() || mServiceState.isEmergencyOnly()) {
+                    // The isEmergencyOnly test covers the case of a phone with no SIM
                     mobileLabel = mNetworkName;
                 } else {
+                    // Tablets, basically
                     mobileLabel = "";
                 }
             } else {