ASoC: qcom: Use snd_pcm_stop_xrun() helper

The XRUN trigger from the driver should be done via
snd_pcm_stop_xrun().  It fixes the missing stream locking as a gratis,
too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/qcom/lpass-platform.c

@@ -458,7 +458,7 @@ static irqreturn_t lpass_dma_interrupt_handler(
 			return IRQ_NONE;
 		}
 		dev_warn(soc_runtime->dev, "xrun warning\n");
-		snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+		snd_pcm_stop_xrun(substream);
 		ret = IRQ_HANDLED;
 	}