ASoC: da732x: Staticise non-exported symbol soc_codec_dev_da732x

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/da732x.c b/sound/soc/codecs/da732x.c
index 04af369..01be2a3 100644
--- a/sound/soc/codecs/da732x.c
+++ b/sound/soc/codecs/da732x.c
@@ -1543,7 +1543,7 @@
 	return 0;
 }
 
-struct snd_soc_codec_driver soc_codec_dev_da732x = {
+static struct snd_soc_codec_driver soc_codec_dev_da732x = {
 	.probe			= da732x_probe,
 	.remove			= da732x_remove,
 	.set_bias_level		= da732x_set_bias_level,