Fix java doc errors

Change-Id: Ibe3b34d13a6bfce0836a75d0478a9e0dd13dd17a
diff --git a/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackPortInfo.java b/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackPortInfo.java
index d23f5f3..544d762 100644
--- a/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackPortInfo.java
+++ b/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackPortInfo.java
@@ -44,6 +44,7 @@
      * @param deviceId device ID
      * @param vni  tunnel ID
      * @param gatewayIP gateway IP address
+     * @param networkId network identifier
      * @param securityGroups security group list
      */
     public OpenstackPortInfo(Ip4Address hostIp, MacAddress hostMac, DeviceId deviceId, long vni,