If using traffic scripts in test add "| Suite Setup | Setup all TGs before
traffic script" to test suite robot file, this bind TG interfaces to the kernel
driver specified in topology. Also add kernel driver name for TG interfaces to
topology YAML file. You can find driver name with following command where you
specify interface PCI address:
# lspci -vmmks 0000:00:07.0
Slot:   00:07.0
Class:  Ethernet controller
Vendor: Red Hat, Inc
Device: Virtio network device
SVendor:        Red Hat, Inc
SDevice:        Device 0001
PhySlot:        7
Driver: virtio-pci