libata: Switch most of the remaining SFF drivers to ata_sff_port_start

This avoids allocating DMA buffers if not needed but at the moment is
mostly just a neatness item.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c
index 4b0ddf6..6e8e557 100644
--- a/drivers/ata/pata_ns87410.c
+++ b/drivers/ata/pata_ns87410.c
@@ -185,7 +185,7 @@
 	.irq_clear	= ata_bmdma_irq_clear,
 	.irq_on		= ata_irq_on,
 
-	.port_start	= ata_port_start,
+	.port_start	= ata_sff_port_start,
 };
 
 static int ns87410_init_one(struct pci_dev *dev, const struct pci_device_id *id)