ide: set drive->autotune in ide_pci_setup_ports()

Majority of host drivers using IDE PCI layer set drive->autotune, the only
exceptions are:

generic.c
ns87415.c
rz1000.c
trm290.c
* no ->set_pio_mode method

it821x.c:
* if memory allocation fails drive->autotune won't be set
  (but there also won't be ->set_pio_mode method in such case)

piix.c:
* MPIIX controller (no ->init_hwif method so also no ->set_pio_mode method)

However if there is no ->set_pio_mode method there are no changes in behavior
w.r.t. PIO tuning so always set drive->autotune in ide_pci_setup_ports().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 7989f52..fff567b 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -577,6 +577,9 @@
 			hwif->ultra_mask = d->udma_mask;
 		}
 
+		hwif->drives[0].autotune = 1;
+		hwif->drives[1].autotune = 1;
+
 		if (d->init_hwif)
 			/* Call chipset-specific routine
 			 * for each enabled hwif