ASoC: soc-dapm: use snd_pcm_direction_name()

We already have snd_pcm_direction_name(). Let's use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87frrrk50n.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-dapm.c

@@ -2751,8 +2751,7 @@ static int dapm_update_dai_unlocked(struct snd_pcm_substream *substream,
 	if (!w)
 		return 0;
 
-	dev_dbg(dai->dev, "Update DAI routes for %s %s\n", dai->name,
-		dir == SNDRV_PCM_STREAM_PLAYBACK ? "playback" : "capture");
+	dev_dbg(dai->dev, "Update DAI routes for %s %s\n", dai->name, snd_pcm_direction_name(dir));
 
 	snd_soc_dapm_widget_for_each_sink_path(w, p) {
 		ret = dapm_update_dai_chan(p, p->sink, channels);