[sig-kubevirt] migration when running openshift cluster on KubeVirt virtual machines and live migrate hosted control plane workers [Early] should maintain node readiness [Suite:openshift/conformance/parallel]

{  fail [github.com/openshift/origin/test/extended/kubevirt/migration.go:83]: Failed after 45.771s.
nodes should maintain ready state
Expected
    <int>: 2
to equal
    <int>: 3
Ginkgo exit error 1: exit with code 1} 

* Mother node-A get a block of 10.10.10.0/26
* Kubevirt vm lands on mother node-A and both the launcher pod and VM inside gets IP from this block -> 10.10.10.1
* Everything OK at this point, mother node-A advertises the /26 block to the upstream router - All good
* Kubevirt vm migrates to mother node-B
* At this point the virt-launcher pod gets a new IP address (e.g. 10.10.10.128) but the VM inside retains it’s IP address of 10.10.10.1
* Mother node-B does not advertise the address of the inside VM because it only sees the launcher pod
* Upstream router just has a route to 10.10.10.0/26 to mother node-A and networking is lost to the migrated kubevirt VM 

    OCP 4.19, Calico 3.29.3

    Always

    1. Run the conformance test suite on https://github.com/openshift/release/pull/64789 (this will be come a periodic job)
   

    The live migration test fails

    The live migration test passes

Calico needs to implement the following to support live migration:
- Detect a new VM pod is the target VM of a live migration.
- Assign original IP of the source VM to the target VM.
- Keep advertising original route(/32) to source VM during live migration.
- Detect migration is complete.
- Switch over to advertise new route.