Fixes #37461 - Don't use the Kickstart rhsm for RHEL 8

The rhsm command has some issues on RHEL 8,
before it was not enabled for RHEL8 until the PR#9745.

refs bf03a25

app/views/unattended/provisioning_templates/provision/kickstart_default.erb

@@ -71,7 +71,7 @@ description: |
   use_ntp = host_param_true?('use-ntp', (is_fedora && os_major < 16) || (rhel_compatible && os_major <= 6))
   iface = @host.provision_interface
   appstream_present = false
-  use_rhsm = (@host.operatingsystem.name == 'RedHat' || @host.operatingsystem.name == 'RHEL') && os_major >= 8
+  use_rhsm = (@host.operatingsystem.name == 'RedHat' || @host.operatingsystem.name == 'RHEL') && os_major >= 9
 -%>
 # This kickstart file was rendered from the Foreman provisioning template "<%= @template_name %>".
 # for <%= @host %> running <%= @host.operatingsystem.name %> <%= os_major %> <%= @arch %>