Fixed issue in NTTTCP test.
Fixed issue in NTTTCP test.

konkasoftci/azure-linux-automation,v-sirebb/azure-linux-automation,v-sirebb/azure-linux-automation,konkasoftci/azure-linux-automation,v-sirebb/azure-linux-automation,konkasoftci/azure-linux-automation,iamshital/azure-linux-automation,iamshital/azure-linux-automation,iamshital/azure-linux-automation