MB-16404: Increase the limit for testing ulimit on startup
MB-16404: Increase the limit for testing ulimit on startup

Increase the value for the ulimit test to 40960.

Change-Id: If7caf2311d7ec2010aaea0fd6a9c101edc836513
Reviewed-on: http://review.couchbase.org/56168
Reviewed-by: Dave Finlay <7b10a9ed9f70e64c30b07607a671ae61c33f14c8@couchbase.com>
Tested-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>

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