Fixed VTN to read network config at activation

Change-Id: If2af33d0076546bfe08afc169155965b02151554
diff --git a/src/main/java/org/opencord/cordvtn/impl/CordVtnNodeManager.java b/src/main/java/org/opencord/cordvtn/impl/CordVtnNodeManager.java
index 2e51c6a..5180480 100644
--- a/src/main/java/org/opencord/cordvtn/impl/CordVtnNodeManager.java
+++ b/src/main/java/org/opencord/cordvtn/impl/CordVtnNodeManager.java
@@ -224,8 +224,8 @@
         deviceService.addListener(deviceListener);
         configService.addListener(configListener);
 
-        // TODO read nodes as well after more tests
         readControllers();
+        readNodes();
         log.info("Started");
     }