ASoC: samsung: Use params_width()

commit 8c5178fca4ce ("ALSA: Add params_width() helpers") introduces
a helper to get the sample width. Updating Samsung related sound
drivers to use this helper.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/samsung/pcm.c b/sound/soc/samsung/pcm.c
index a3c9c9c..4c5f97f 100644
--- a/sound/soc/samsung/pcm.c
+++ b/sound/soc/samsung/pcm.c
@@ -283,8 +283,8 @@
 	dev_dbg(pcm->dev, "Entered %s\n", __func__);
 
 	/* Strictly check for sample size */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		break;
 	default:
 		return -EINVAL;