Fix switchLat test by excluding non-openflow FIN packets

Change-Id: I426fa71f1b583de11b2d60e7cbca112265593fff
diff --git a/TestON/tests/SCPF/SCPFswitchLat/dependencies/switchFunc.py b/TestON/tests/SCPF/SCPFswitchLat/dependencies/switchFunc.py
index b097166..b9463c2 100644
--- a/TestON/tests/SCPF/SCPFswitchLat/dependencies/switchFunc.py
+++ b/TestON/tests/SCPF/SCPFswitchLat/dependencies/switchFunc.py
@@ -100,6 +100,9 @@
     for line in resultText:
         for term in keyTerm:
             if term in line:
+                # Exclude non-openflow FIN packets
+                if term == "[FIN, ACK]" and "openflow" not in line:
+                    continue
                 path = '/tmp/Tshark_' + str( keyTerm[ term ] )
                 with open( path, 'a' ) as outputfile:
                     outputfile.write( line )