The custom proxy port should be added to http_port_t instead of http_cache_port_t

This is for now just an RFE and should only be implemented after careful discussion with Sat\foreman\katello developers .

I will add more details in my next comment

Reported by: rhn-support-saydas

https://access.redhat.com/documentation/en-us/red_hat_satellite/6.13/html/installing_satellite_server_in_a_connected_network_environment/performing-additional-configuration#annotations:e634aff2-096f-4850-ab02-95cc978ae234