ASoC: cs42l42: use helper function

Current ASoC has many helper function.

Link: https://lore.kernel.org/r/20230201111415.67bd4b7e@canb.auug.org.auReported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87bkme6vp5.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs42l42-sdw.c

@@ -155,10 +155,7 @@ static int cs42l42_sdw_dai_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_str
 	if (!sdw_stream)
 		return 0;
 
-	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
-		dai->playback_dma_data = sdw_stream;
-	else
-		dai->capture_dma_data = sdw_stream;
+	snd_soc_dai_dma_data_set(dai, direction, sdw_stream);
 
 	return 0;
 }