gb: update Vodafone UK APNs

BUG=chrome-os-partner:20783
TEST=xmllint --valid --noout serviceproviders.xml
TEST=Run unit tests

Change-Id: I07b3ef7b8fb2a9cb62f3027f8dc63d6c142d62b1
Reviewed-on: https://gerrit.chromium.org/gerrit/62613
Reviewed-by: Thieu Le <thieule@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
1 file changed