Commit
c5afbd3336d048462ab1888cd698f498a571388c
by Pau Espin Pedrolsbcap: Listen on (127.0.0.1|::1) by default
Follow what's described in the User Manual:
"The default is to bind to the 3GPP standard port number 29168 for
SBc-AP at the loopback IP address 127.0.0.1 and ::1."
Change-Id: I6cb1c7031c09469e7b7c29a0733e99faea9f6615