kube-ovn-cni duplicated log when config IFACE

[oilbeater]

I0810 16:56:28.756223    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:32.034158    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:35.357950    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:38.525206    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:41.654147    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:44.840345    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:48.066399    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:51.205864    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:54.364064    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:56:57.536855    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:57:00.717322    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:57:03.953720    5726 config.go:281] use enp0s2 as tunnel interface
I0810 16:57:07.126735    5726 config.go:281] use enp0s2 as tunnel interface