AKOO should check if ControlPlaneEndpoint is FQDN before setting to HA service

[lubronzhan]

Bug description
In AKOO 1.9 It's not checking whether the cluster.Spec.ControlPlaneEndpoint.Host is FQDN or not, before updating the service's loadbalancerIP here, that's why this is failing. It only checks here 

So it sets FQDN as service.spec.loadbalancerIP, then AKO will have issue with it and can't update the backend server pool

2024-01-09T13:16:20.669Z WARN rest/dequeue_nodes.go:806 key: admin/tkg-system-mgmt--tkg-system-tkg-system-mgmt-control-plane, msg: problem in processing request for: VsVip
2024-01-09T13:16:20.669Z INFO rest/dequeue_nodes.go:807 key: admin/tkg-system-mgmt--tkg-system-tkg-system-mgmt-control-plane, msg: error str: Encountered an error on PUT request to URL https://10.97.48.5//api/vsvip/vsvip-3628bde3-2707-4974-9a1c-f908aec5b209: HTTP code: 400; error from Avi: map[error:tkg-system-mgmt--tkg-system-tkg-system-mgmt-control-plane has invalid virtual ipv4 address mgmt.tanzu.bitc.int.tele2.com]

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[lubronzhan]

Completed