ASoC: replace 0xffffffff with DMA_BIT_MASK macro

Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index e4ba17c..ddc6cde 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -411,7 +411,7 @@
 	if (!card->dev->dma_mask)
 		card->dev->dma_mask = &dma_mask;
 	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = 0xffffffff;
+		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = preallocate_dma_buffer(pcm,