ide: ht6560b: Fix cast to pointer from integer of different size

Integer passed as pointer to drvdata should be cast to unsigned long to
avoid warning (compile testing on alpha architecture):

    drivers/ide/ht6560b.c: In function ‘ht6560b_init_dev’:
    drivers/ide/ht6560b.c:318:27: warning:
        cast to pointer from integer of different size [-Wint-to-pointer-cast]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/ide/ht6560b.c

@@ -310,7 +310,7 @@ static void __init ht6560b_init_dev(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	/* Setting default configurations for drives. */
-	int t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT;
+	unsigned long t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT;
 
 	if (hwif->channel)
 		t |= (HT_SECONDARY_IF << 8);