Javadoc error correction

Change-Id: Ic764772f57fa826b5c8ef9ead913783fa2d05fa3

@@ -78,6 +78,7 @@ public interface SnatService {
      * @param matchVni the vni of L3 network
      * @param srcIP source ip
      * @param dstIP destination ip
+     * @param prefix prefix
      * @param type the operation type of the flow rules
      */
     void programSnatSameSegmentUploadControllerRules(DeviceId deviceId,

@@ -30,7 +30,7 @@ public final class IpUtil {
      *
      * @param srcIp source Ip
      * @param dstIp destination
-     * @param masks netmask length
+     * @param mask netmask length
      * @return boolean
      */
     public static boolean checkSameSegment(IpAddress srcIp, IpAddress dstIp,