ASoC: codecs: wsa881x: constify static struct snd_soc_dai_ops

The snd_soc_dai_ops structures is only stored in the ops field of a
snd_soc_dai_driver structure, so make the snd_soc_dai_ops structure
const to allow the compiler to put it in read-only memory.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20210408062700.803792-1-yebin10@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wsa881x.c

@@ -1014,7 +1014,7 @@ static int wsa881x_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
 	return 0;
 }
 
-static struct snd_soc_dai_ops wsa881x_dai_ops = {
+static const struct snd_soc_dai_ops wsa881x_dai_ops = {
 	.hw_params = wsa881x_hw_params,
 	.hw_free = wsa881x_hw_free,
 	.mute_stream = wsa881x_digital_mute,