[libata] convert drivers to use ata.h mode mask defines

No functional changes in this patch.

Signed-off-by: Erik Inge Bolsø <knan-lkml@anduin.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index 15cdb91..afa8f70 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -66,7 +66,7 @@
 	ap = host->ports[0];
 
 	ap->ops = &isapnp_port_ops;
-	ap->pio_mask = 1;
+	ap->pio_mask = ATA_PIO0;
 	ap->flags |= ATA_FLAG_SLAVE_POSS;
 
 	ap->ioaddr.cmd_addr = cmd_addr;