[SCSI] bnx2fc: host stats show the link speed 'unknown' on NIC partitioned interfaces

NIC partitioned interfaces reports the speed of 2500 which was not handled by
the driver.
Signed-off-by: NBhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

drivers/scsi/bnx2fc/bnx2fc_fcoe.c

@@ -679,6 +679,9 @@ static void bnx2fc_link_speed_update(struct fc_lport *lport)
 		case SPEED_1000:
 			lport->link_speed = FC_PORTSPEED_1GBIT;
 			break;
+		case SPEED_2500:
+			lport->link_speed = FC_PORTSPEED_2GBIT;
+			break;
 		case SPEED_10000:
 			lport->link_speed = FC_PORTSPEED_10GBIT;
 			break;