Issue
Goal
Just as in https://issues.redhat.com/browse/RHEL-50651, we want to show the VM user if it is actually running in a confidential VM or not. This is exactly what virt-what-cvm does, therefore it makes sense to integrate it in RHEL.
Acceptance Criteria
virt-what-cvm is available on RHEL
Boot a CVM, virt-what-cvm says that we are in a CVM
Boot a VM, virt-what-cvm says that we are not in a CVM
