MB-27440 add memcached port to cbauth for local node
MB-27440 add memcached port to cbauth for local node

...even if kv service is not enabled, so the go components
can get credentials for accessing audit service

Change-Id: Iae5ccbe1837cb161809aee6f3730a91d8e53d53f
Reviewed-on: http://review.couchbase.org/87485
Tested-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>
Reviewed-by: Aliaksey Artamonau <ce14b1c16e0fd654f926118eb8addbec5aff4ffa@couchbase.com>
Well-Formed: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server