Description of problem:
Image based provisioning should have bootorder: 1 for the containerDisk
a example yaml from a VM created from KubeVirt console
```
        devices:
          disks:
            - bootOrder: 1
              disk:
                bus: virtio
              name: rootdisk
            - disk:
                bus: virtio
              name: test-noboot
          interfaces:
            - bridge: {}
              name: nic0
          rng: {}
        machine:
          type: ''
        resources:
          requests:
            memory: 4G
      networks:
        - name: nic0
          pod: {}
      terminationGracePeriodSeconds: 0
      volumes:
        - containerDisk:
            image: kubevirt/fedora-cloud-registry-disk-demo
          name: rootdisk
        - dataVolume:
            name: test-noboot-test-fedora
          name: test-noboot
```

Version-Release number of selected component (if applicable):
master of the plugin

How reproducible:


Steps to Reproduce:
1.Create a Image based host
2.
3.

Actual results:
The provisioning works, but should have the bootorder defined 

Expected results:


Additional info: