Description of problem:
The Windows high performance templates should use virtio storage, because the high pormance templates should provide best performance, even if this requires additional drivers.

Version-Release number of selected component (if applicable):
4.9.0-264


How reproducible:
100%

Steps to Reproduce:
1. oc get templates -nopenshift  -o=yaml windows2k19-highperformance-large  |  grep -A 3 "disks:"


Actual results:
            disks:
            - disk:
                bus: sata
              name: ${NAME}

Expected results:
            disks:
            - disk:
                bus: virtio
              name: ${NAME}

Additional info: