ASoC: wm8776: add missing break in sample size switch

Broken in commit d1dc698a54259cb454284456483b45f67c865cf8

Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c
index bfdc523..d3b0a20 100644
--- a/sound/soc/codecs/wm8776.c
+++ b/sound/soc/codecs/wm8776.c
@@ -235,6 +235,7 @@
 	switch (snd_pcm_format_width(params_format(params))) {
 	case 16:
 		iface = 0;
+		break;
 	case 20:
 		iface = 0x10;
 		break;