ASoC: codecs: make snd_soc_dai_driver and snd_soc_component_driver const

Make these two structure variables const as they are either used in a
copy operation or passed to devm_snd_soc_register_component having the
corresponding argument as const.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/lm4857.c b/sound/soc/codecs/lm4857.c
index 558de10..1e96407 100644
--- a/sound/soc/codecs/lm4857.c
+++ b/sound/soc/codecs/lm4857.c
@@ -100,7 +100,7 @@ static const struct snd_soc_dapm_route lm4857_routes[] = {
 	{ "EP", "Earpiece", "Mode" },
 };
 
-static struct snd_soc_component_driver lm4857_component_driver = {
+static const struct snd_soc_component_driver lm4857_component_driver = {
 	.controls = lm4857_controls,
 	.num_controls = ARRAY_SIZE(lm4857_controls),
 	.dapm_widgets = lm4857_dapm_widgets,