geoip: switch data::maxmind to geoipupdate

geoipupdate was forked off the GeoIP distribution and is maintained
separately. The newer version supports GeoIP2 databases, HTTPS, as well
as setting a proxy from the configuration file.

geoipupdate packages have been backported and are already in apt for
both precise and trusty.

Change-Id: I926b488c320035f591518d817ef6234c61889dbb