Ref #36499 - libvirt configuration needs server and username

[lfu]

server=qemu:///system is the configuration for kvm hypervisor where virt-who is installed locally on the hypervisor
and the configuration script runs on the kvm hypervisor as well.

The virt-who support for rhevm is to run the virt-who configuration script on the satellite server.
The configuration needs the information about the hypervisor server and username.
Satellite server's SSH key should be added to rhevm hypervisor's authorized_keys.

Followup of #166

Steps to test

1. copy satellite server's key to rhevm hypervisor
   # ssh-keygen -t rsa -P '' -f /root/.ssh/id_rsa ; ssh-copy-id -i /root/.ssh/id_rsa.pub hypervisor.redhat.com
2. Register guest to satellite
3. Create virt-who config with hypervisor type libvirt
4. Deploy virt-who config on satellite server
   # hammer virt-who-config deploy --id 1 --organization-id 1
5. check mapping info in /var/log/rhsm/rhsm.log

[chris1984]

@lfu

I am not seeing the username or server field added back:

[chris1984]

Tried a different browser and machine and i'm seeing the fields correctly now.

ACK

[lfu]