[PATCH] hpt366 fix

The HPT366 code is broken - it tries to set the interface to too high a
speed, which leads to error messages at boot time and/or to data
corruption.

The typical effect at boot time is

 hde: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error }
 hde: set_drive_speed_status: error=0x04 { DriveStatusError }

Fixed thus.

drivers/ide/pci/hpt366.c

@@ -440,7 +440,7 @@ static int hpt3xx_tune_chipset (ide_drive_t *drive, u8 speed)
 
 static void hpt3xx_tune_drive (ide_drive_t *drive, u8 pio)
 {
-	pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
+	pio = ide_get_best_pio_mode(drive, 255, pio, NULL);
 	(void) hpt3xx_tune_chipset(drive, (XFER_PIO_0 + pio));
 }