Update template directory with new variables when upgrading ipa.conf.template
    
    With e6c707b168067ebb3705c21efc377acd29b23fff we changed httpd
    configuration to use abstracted out variables in the template.
    However, during upgrade we haven't resolved these variables so an
    upgrade from pre-e6c707b168067ebb3705c21efc377acd29b23fff install will
    fail.
    
    Add all missing variables to the upgrade code.
    
    Fixes https://pagure.io/freeipa/issue/7454
    Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
    Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>