[SCSI] stex: fix queue depth setting

We want to set the queue depth to something reasonable - not
the can_queue.

Signed-off-by: Mike Christie <[e-mail]>
Cc: Ed Lin <[e-mail]>
Signed-off-by: James Bottomley <[e-mail]>

drivers/scsi/stex.c

···
 	/* Cheat: usually extracted from Inquiry data */
 	sdev->tagged_supported = 1;
 
-	scsi_activate_tcq(sdev, sdev->host->can_queue);
+	scsi_activate_tcq(sdev, ST_CMD_PER_LUN);
 
 	return 0;
 }