Comment 2 for bug 1976270

We discussed this RFE today on the drivers meeting:
https://meetings.opendev.org/meetings/neutron_drivers/2022/neutron_drivers.2022-06-24-14.00.log.html#l-21

Summary: the best would be to change networking-generic-switch to wait for the backend, and when the hw finished fill the provisioning info for the port (as ovs-agent is doing it for example) and Neutron can send VIF_Plugged based on that to other components. If during the change there is a need to change the driver interface we can discuss that and based on the specific request.