ASoC: ti: fixup ams_delta_mute() function name

commit 059374fe ("ASoC: ti: merge .digital_mute() into .mute_stream()")
merged .digital_mute() into .mute_stream().
But it didn't rename ams_delta_digital_mute() to ams_delta_mute().
This patch fixup it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/87blizy5ts.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/ti/ams-delta.c

@@ -446,12 +446,12 @@ static const struct snd_soc_dai_ops ams_delta_dai_ops = {
 /* Will be used if the codec ever has its own digital_mute function */
 static int ams_delta_startup(struct snd_pcm_substream *substream)
 {
-	return ams_delta_digital_mute(NULL, 0, substream->stream);
+	return ams_delta_mute(NULL, 0, substream->stream);
 }
 
 static void ams_delta_shutdown(struct snd_pcm_substream *substream)
 {
-	ams_delta_digital_mute(NULL, 1, substream->stream);
+	ams_delta_mute(NULL, 1, substream->stream);
 }