[SCSI] lpfc: fix printk format warning

Fix printk format warning:
drivers/scsi/lpfc/lpfc_attr.c:597: warning: long long unsigned int format, uint64_t arg (arg 4)
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: James Smart <James.Smart@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/lpfc/lpfc_attr.c

@@ -594,7 +594,8 @@ lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
 {
 	struct Scsi_Host *host = class_to_shost(cdev);
 	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
-	return snprintf(buf, PAGE_SIZE, "0x%llx\n", phba->cfg_soft_wwpn);
+	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+			(unsigned long long)phba->cfg_soft_wwpn);
 }