scsi: lpfc: Fix link speed reporting for 4-link trunk

Driver is using uint16_t and is encountering an overflow of the 16bits when
calculating link speed.

Fix by using a u32 type.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_sli4.h

@@ -258,13 +258,13 @@ struct lpfc_queue {
 };
 
 struct lpfc_sli4_link {
-	uint16_t speed;
+	uint32_t speed;
 	uint8_t duplex;
 	uint8_t status;
 	uint8_t type;
 	uint8_t number;
 	uint8_t fault;
-	uint16_t logical_speed;
+	uint32_t logical_speed;
 	uint16_t topology;
 };