add missing quate on string

Change-Id: I63599a3e2c43312c7c5c7c81aa24b35ad536fc9f
diff --git a/TestON/tests/SCPFportLat/SCPFportLat.py b/TestON/tests/SCPFportLat/SCPFportLat.py
index 5f5d83e..35147ca 100644
--- a/TestON/tests/SCPFportLat/SCPFportLat.py
+++ b/TestON/tests/SCPFportLat/SCPFportLat.py
@@ -522,7 +522,7 @@
                     str(portDownLinkToGraphAvg) + ' ms')
 
             dbCmdList.append(
-                    timeToPost + "','port_latency_results'," + jenkinsBuildNumber +
+                    "'" + timeToPost + "','port_latency_results'," + jenkinsBuildNumber +
                     ',' + str(clusterCount) + ",'baremetal" + str(node + 1) +
                     "'," +
                     str(portUpEndToEndAvg) +',' +