[ONOS-2613] Unit test the BGP Update message(LinkStateAttribute)

Change-Id: Id9545296612bed858459c8386368c66cb2159173
diff --git a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIgpFlags.java b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIgpFlags.java
index 4e84191..7f6f63f 100644
--- a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIgpFlags.java
+++ b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpPrefixAttrIgpFlags.java
@@ -57,7 +57,7 @@
      * @param bOspfLclAddrBit OSPF local address Bit
      * @param bOspfNSSABit OSPF propagate NSSA Bit
      */
-    BgpPrefixAttrIgpFlags(boolean bisisUpDownBit,
+    public BgpPrefixAttrIgpFlags(boolean bisisUpDownBit,
                           boolean bOspfNoUnicastBit,
                           boolean bOspfLclAddrBit, boolean bOspfNSSABit) {
         this.bisisUpDownBit = bisisUpDownBit;