ipatests/test_integration/test_replica_promotion.py: Configure firewall
    
    The tests in this file are calling ipa-[server,replica]-install directly
    instead of using methods from tasks. Therefore it is required to enable
    or disable the needed firewall services also.
    
    Reviewed-By: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Armando Neto <abiagion@redhat.com>