Fix javadoc warnings

Change-Id: I3de24a04593f47c786f698f5ee1669b3d2f2fdfc
diff --git a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/CordService.java b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/CordService.java
index 0d09bb3..f877630 100644
--- a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/CordService.java
+++ b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/CordService.java
@@ -53,6 +53,7 @@
      * Default constructor.
      *
      * @param vNet OpenStack network
+     * @param subnet OpenStack subnet
      * @param hosts host and tunnel ip map
      * @param tenantServices list of tenant service ids
      */