Fixed annotations parsing int PortDescriptionConfig

Change-Id: I612bede9fd90b82779c82d7ba0191b975e50f337
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/config/basics/PortDescriptionsConfig.java b/incubator/api/src/main/java/org/onosproject/incubator/net/config/basics/PortDescriptionsConfig.java
index f842615..a387810 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/config/basics/PortDescriptionsConfig.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/config/basics/PortDescriptionsConfig.java
@@ -117,7 +117,7 @@
                 if (portNode.has(ANNOTATIONS)) {
                     DefaultAnnotations.Builder annotationsBuilder = DefaultAnnotations.builder();
                     Iterator<Map.Entry<String, JsonNode>> annotationsIt = portNode.get(ANNOTATIONS).fields();
-                    while (it.hasNext()) {
+                    while (annotationsIt.hasNext()) {
                         Map.Entry<String, JsonNode> entry = annotationsIt.next();
                         annotationsBuilder.set(entry.getKey(), entry.getValue().asText());
                     }