localssl: listen on both ipv6 and ipv4 sockets

If nginx only listens on ipv6 sockets, then it will also accept
IPv4 traffic, but will use a mapped address format. This breaks
bits geoip lookups, since they only handle ipv4 addresses.

Change-Id: I773a5ad28d4d194be92cff794c275a7d9514f939
Merge "localssl: listen on both ipv6 and ipv4 sockets" into production