lpfc: Fix return value in __lpfc_nvme_ls_abort

A static checker reported the following issue:
  drivers/scsi/lpfc/lpfc_nvmet.c:1366 lpfc_nvmet_ls_abort()
  warn: 'ret' can be either negative or positive

The comment indicates a non-zero value indicates error in the
form of -Exxx, but the code is returning "1".

Fix the code to return -EINVAL to be compliant to comment.

Fixes: e96a22b0 ("lpfc: Refactor Send LS Abort support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/scsi/lpfc/lpfc_nvme.c

@@ -895,7 +895,7 @@ __lpfc_nvme_ls_abort(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC | LOG_NVME_ABTS,
 			 "6213 NVMEx LS REQ Abort: Unable to locate req x%p\n",
 			 pnvme_lsreq);
-	return 1;
+	return -EINVAL;
 }
 
 static int