ASoC: Intel: Baytrail: Fix implicit fallthrough warning

Append fallthrough statement to fix warning reported during compilation.

Fixes: b80d19c166 ("ASoC: Intel: Restore Baytrail ADSP streams only when ADSP was in reset")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20190828095102.15737-1-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/baytrail/sst-baytrail-pcm.c

@@ -193,6 +193,7 @@ static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 		break;
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 		pdata->restore_stream = false;
+		/* fallthrough */
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 		sst_byt_stream_pause(byt, pcm_data->stream);
 		break;