[PATCH] aic79xx build and lun detect problem fix

  http://linux.bkbits.net:8080/linux-2.5/diffs/drivers/scsi/aic7xxx/aic79xx_osm.c@1.16?nav=index.html|src/|src/drivers|src/drivers/scsi|src/drivers/scsi/aic7xxx|hist/drivers/scsi/aic7xxx/aic79xx_osm.c

    This change(latest aic79xx driver and scsi_cmnd changes merging)
    is dropped `hscb->lun = cmd->device->lun;' (in aic79xx_osm.c line
    4272). This change cause lun detect problem. I believe it is still
    needed.

drivers/scsi/aic7xxx/aic79xx_osm.c

@@ -4269,6 +4269,7 @@ ahd_linux_run_device_queue(struct ahd_softc *ahd, struct ahd_linux_device *dev)
 		 */
 		hscb->control = 0;
 		hscb->scsiid = BUILD_SCSIID(ahd, cmd);
+		hscb->lun = cmd->device->lun;
 		scb->hscb->task_management = 0;
 		mask = SCB_GET_TARGET_MASK(ahd, scb);