Return error upon attempt to use non-existent APN

startUsingNetworkFeature will ignore errors from
reconnect - causing ConnectivityService to send
faulty information back to requester.

Change-Id: I4e0fcc1addd84da409cdc1eed1a95d25d925e020
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index ad1dfb2..ec682e8 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -1183,8 +1183,11 @@
                         log("startUsingNetworkFeature reconnecting to " + networkType + ": " +
                                 feature);
                     }
-                    network.reconnect();
-                    return PhoneConstants.APN_REQUEST_STARTED;
+                    if (network.reconnect()) {
+                        return PhoneConstants.APN_REQUEST_STARTED;
+                    } else {
+                        return PhoneConstants.APN_REQUEST_FAILED;
+                    }
                 } else {
                     // need to remember this unsupported request so we respond appropriately on stop
                     synchronized(this) {