sgiioc4: add ide_toggle_bounce() calls

Add ide_toggle_bounce() call to ->ide_dma_on/->dma_off_quietly
methods so they match generic __ide_dma_on()/ide_dma_off_quietly().

Tested on Altix by Jeremy.
Acked-by: NJeremy Higdon <jeremy@sgi.com>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/pci/sgiioc4.c

@@ -281,6 +281,7 @@ static int
 sgiioc4_ide_dma_on(ide_drive_t * drive)
 {
 	drive->using_dma = 1;
+	ide_toggle_bounce(drive, 1);
 
 	return 0;
 }
@@ -288,6 +289,7 @@ sgiioc4_ide_dma_on(ide_drive_t * drive)
 static void sgiioc4_dma_off_quietly(ide_drive_t *drive)
 {
 	drive->using_dma = 0;
+	ide_toggle_bounce(drive, 0);
 
 	drive->hwif->dma_host_off(drive);
 }