scsi: lpfc: double lock typo in lpfc_ns_rsp()

There is a double lock bug here so this will deadlock instead of
unlocking.

Fixes: 1c5b12f7 ("Fix implicit logo and RSCN handling for NVMET")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>