Exposes the NGUID, EUI-64, and NSID to sysfs entries under the disk's
kobject.
Signed-off-by: NKeith Busch <keith.busch@intel.com>
Reviewed-by: NSagi Grimberg <sagig@mellanox.com>
Signed-off-by: NJens Axboe <axboe@fb.com>