Capture only port status messages in port latency test

Change-Id: I7eb7017d6bcf6f3f69ce107bb17f2d6c22b29349
(cherry picked from commit 030e3cbc11643f4a7ff6ab3d8e20cae8b7a72c6d)
diff --git a/TestON/tests/SCPF/SCPFportLat/SCPFportLat.params b/TestON/tests/SCPF/SCPFportLat/SCPFportLat.params
index c540850..6d7de4f 100644
--- a/TestON/tests/SCPF/SCPFportLat/SCPFportLat.params
+++ b/TestON/tests/SCPF/SCPFportLat/SCPFportLat.params
@@ -33,7 +33,7 @@
     </CFG>
     <TSHARK>
         <tsharkReusltPath>/tmp/tshark_portStatus</tsharkReusltPath>
-        <ofpPortStatus>OpenFlow 146</ofpPortStatus>
+        <ofpPortStatus>OpenFlow 146 Type: OFPT_PORT_STATUS</ofpPortStatus>
     </TSHARK>
     <SLEEP>
         <startup>5</startup>