ASoC: Cleanup duplicated const

Commit 85e7652("ASoC: Constify snd_soc_dai_ops structs") accidentally
introduced a few duplicated consts. This patch cleans it up.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c
index c69bdfe..8b7e1c5 100644
--- a/sound/soc/codecs/adau1701.c
+++ b/sound/soc/codecs/adau1701.c
@@ -427,7 +427,7 @@
 #define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 	SNDRV_PCM_FMTBIT_S24_LE)
 
-static const const struct snd_soc_dai_ops adau1701_dai_ops = {
+static const struct snd_soc_dai_ops adau1701_dai_ops = {
 	.set_fmt	= adau1701_set_dai_fmt,
 	.hw_params	= adau1701_hw_params,
 	.digital_mute	= adau1701_digital_mute,