ASoC: rockchip: make snd_soc_ops const

Make this const as it is only stored in the ops field of a
snd_soc_dai_link structure, which is const.
Done using Coccinelle
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/rockchip/rk3288_hdmi_analog.c

@@ -147,7 +147,7 @@ static int rk_init(struct snd_soc_pcm_runtime *runtime)
 	return 0;
 }
 
-static struct snd_soc_ops rk_ops = {
+static const struct snd_soc_ops rk_ops = {
 	.hw_params = rk_hw_params,
 };