kubevirt vm 指定 kube-ovn ip mac

打开 vm yaml

## annotation
pod 模版制定 mac
        attachnet.default.ovn.kubernetes.io/ip_address: 172.16.1.18    
        attachnet.default.ovn.kubernetes.io/mac_address: 00:00:00:6E:6B:79

interfaces :
bridge:fh
macAddress: DE-AD-00-00-BE-AF

# 虚拟机直接指定 mac

macAddress: 00-00-00-6E-6B-79

name: attachnet