Add iDEN to getNetworkTypeName.

For bug 2667143.

Integrated Digital Enhanced Network (iDEN) is a mobile telecommunications

technology which provides its users the benefits of a trunked radio and

a cellular telephone.

Change-Id: I4a1f5dbdd22a2c4ce5252688053ec4a47805d6b9

telephony/java/android/telephony/TelephonyManager.java

@@ -477,6 +477,8 @@ public class TelephonyManager {
                 return "LTE";
             case NETWORK_TYPE_EHRPD:
                 return "CDMA - eHRPD";
+            case NETWORK_TYPE_IDEN:
+                return "iDEN";
             default:
                 return "UNKNOWN";
         }