[PATCH] openbsc: unhardwire MGCP endpoint id

Hi Folks, At present endpoint IDs are assumed to end with @mgw when trying to find/match non-e1 endpoint ids. Unless the MGCP peer supports compatible configuration, DNS or a hosts file may need to be setup to meet the hardwired host name requirement in the openBsc MGCP, and then we can still only run one BSC. The attached patch makes a simple change to use either the configured local_ip or source_addr, matching logic used in SDP responses. It also improves the error message when an endpoint can't be found. Please consider for inclusion to mainline. Kind Regards, Mike