Enable config_parse test for win32

Change-Id: Ib624a292b45238472b328df41bfae1ff031a1e56
Reviewed-on: http://review.couchbase.org/42831
Tested-by: buildbot <build@couchbase.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Reviewed-by: Dave Rigby <daver@couchbase.com>