ide: fix enabling DMA on it821x in "smart" mode

ide_tune_dma() should return '1' if IDE_HFLAG_NO_SET_MODE host flag is set.

Cc: Sergei Shtylyov <[e-mail]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[e-mail]>

drivers/ide/ide-dma.c

···
 	}
 
 	if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
-		return 0;
+		return 1;
 
 	if (ide_set_dma_mode(drive, speed))
 		return 0;