fix kubevirt api vmi.status.runtimeUser

test failure now reduced to:

---
    compatibility.go:422: json differs
    compatibility.go:423:   (
          	"""
          	... // 214 identical lines
          	              "bus": "busValue",
          	              "readonly": true
        - 	            },
        - 	            "floppy": {
        - 	              "readonly": true,
        - 	              "tray": "trayValue"
          	            },
          	            "cdrom": {
          	... // 657 identical lines
          	"""
          )

    compatibility.go:428: yaml differs
    compatibility.go:429:   (
          	"""
          	... // 237 identical lines
          	          pciAddress: pciAddressValue
          	          readonly: true
        - 	        floppy:
        - 	          readonly: true
        - 	          tray: trayValue
          	        io: ioValue
          	        lun:
          	... // 344 identical lines
          	"""
          )