host-device: Return interface name in result

[sriramy]

It would be nice to see the interface name in network-status pod annotation when called by multus, or other meta plugin when the host device is bound to a userspace driver.

For e.g. when I have a NAD as follows, and attach it to a pod

apiVersion: k8s.cni.cncf.io/v1
kind: NetworkAttachmentDefinition
metadata:
  annotations:
    k8s.v1.cni.cncf.io/resourceName: openshift.io/pci_sriov_vf
  name: net-a
spec:
  config: |-
    {
        "cniVersion": "1.0.0",
        "name": "net-a",
        "type": "host-device",
        "pciBusID": "0000:07:00.0",
        "ipam": {}
    }

k8s.v1.cni.cncf.io/network-status: |-
  [{
      "name": "ovn-kubernetes",
      "interface": "eth0",
      "ips": [
          "fd02:0:0:1::2ed"
      ],
      "mac": "0a:58:70:d0:c0:27",
      "default": true,
      "dns": {}
  },{
      "name": "sriramy/net-a",
      "interface": "net1",
      "dns": {},
      "device-info": {
          "type": "pci",
          "version": "1.1.0",
          "pci": {
              "pci-address": "0000:07:00.0"
          }
      }
  }]
k8s.v1.cni.cncf.io/networks: '[{"name":"net-a","namespace":"sriramy"}]'

What is added is the below line in network status annotation field for net-a
"interface": "net1",