[KubeVirt] Add ipv6 subnet to k8s net

Related-PROD: KUBV-394
Change-Id: I39537fc576f1681aac1c57d4f64a847f35be5bce
diff --git a/hco/fragments/VMInstanceCeph.yaml b/hco/fragments/VMInstanceCeph.yaml
index 5304d5e..ad54722 100644
--- a/hco/fragments/VMInstanceCeph.yaml
+++ b/hco/fragments/VMInstanceCeph.yaml
@@ -6,6 +6,8 @@
     type: string
   k8s_subnet_id:
     type: string
+  k8s_subnet_ipv6_id:
+    type: string
   public_net_id:
     type: string
   data_network:
@@ -55,6 +57,7 @@
       port_security_enabled: false
       fixed_ips:
         - subnet: { get_param: k8s_subnet_id }
+        - subnet: { get_param: k8s_subnet_ipv6_id }
 
   floating_ip_k8s_net:
     type: OS::Neutron::FloatingIP