ASoC: amd: raven: acp3x-i2s: 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/20210408062651.803413-1-yebin10@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/raven/acp3x-i2s.c

@@ -249,7 +249,7 @@ static int acp3x_i2s_trigger(struct snd_pcm_substream *substream,
 	return ret;
 }
 
-static struct snd_soc_dai_ops acp3x_i2s_dai_ops = {
+static const struct snd_soc_dai_ops acp3x_i2s_dai_ops = {
 	.hw_params = acp3x_i2s_hwparams,
 	.trigger = acp3x_i2s_trigger,
 	.set_fmt = acp3x_i2s_set_fmt,