RHSM in RHEL 8.9+ & RHEL 9.3+ requires newly for the switch to the
container mode existence and content under /etc/pki/entitlement-host,
which in our case should by symlink to /etc/pki/entitlement.
So currently we need for the correct switch 2 symlinks:
* /etc/pki/rhsm-host -> /etc/pki/rhsm
* /etc/pki/entitlement-host -> /etc/pki/entitlement
Technically we need that only for RHEL 8.9+ but discussing it with
RHSM SST, we can do this change unconditionally for any RHEL system
as older versions of RHSM do not check /etc/pki/entitlement-host.
Arkady L. Shane