Support OVN Interconnect (#9599)

Mostly taken from: https://raw.githubusercontent.com/kubeovn/kube-ovn/master/yamls/ovn-ic.yaml.j2

roles/network_plugin/kube-ovn/templates/cni-kube-ovn.yml.j2

@@ -608,3 +608,19 @@ spec:
   ports:
     - port: 10665
       name: metrics
+{% if kube_ovn_ic_enable %}
+---
+kind: ConfigMap
+apiVersion: v1
+metadata:
+  name: ovn-ic-config
+  namespace: kube-system
+data:
+  enable-ic: "{{ kube_ovn_ic_enable | lower }}"
+  az-name: "{{ kube_ovn_ic_zone }}"
+  ic-db-host: "{{ kube_ovn_ic_dbhost }}"
+  ic-nb-port: "6645"
+  ic-sb-port: "6646"
+  gw-nodes: "{{ kube_ovn_central_hosts|join(',') }}"
+  auto-route: "{{ kube_ovn_ic_autoroute | lower }}"
+{% endif %}