fix(confd): give controller/router /deis access
fix(confd): give controller/router /deis access

Both components require access to /deis/domains, which holds the
keys for all application domains. Since /deis/domains does not
exist at first boot, confd will complain that /deis/domains
does not exist as a key if you supply it to the keys list. Since
the /deis key always exists, setting the keyspace one level lower
fixes this issue.

Joshua-Anderson/controller-sdk-go,Joshua-Anderson/controller-sdk-go