Ensure destination dir for bcpg link is present.
Ensure destination dir for bcpg link is present.

The destination dir for the bcpg link needs to be present before the
link can be made. Add that dir to the gerrit init manifest and require
it in the link file resource.

Change-Id: I462cc96dcd0eafa814e3e3599a96eacc64665bcf
Reviewed-on: https://review.openstack.org/14319
Reviewed-by: Jeremy Stanley <98883b97e35b7bb1ac282bb863f2e9d917db0454@yuggoth.org>
Reviewed-by: Paul Belanger <b4265d8fef626f73eff739ef4ffce9d45b30eddd@polybeacon.com>
Reviewed-by: James E. Blair <e81a02a9d6405977f63a769d9f6ec8ed9d924325@inaugust.com>
Approved: James E. Blair <e81a02a9d6405977f63a769d9f6ec8ed9d924325@inaugust.com>
Tested-by: Jenkins

open-switch/infra_puppet-gerrit,dhiana/puppet-gerrit,dhiana/puppet-gerrit,dhiana/puppet-gerrit,open-switch/infra_puppet-gerrit,open-switch/infra_puppet-gerrit