ASoC: sunxi: make snd_soc_codec_driver structures as const

Declare snd_soc_codec_driver structures as const as they are either
passed as an argument to the function snd_soc_register_codec or stored as
reference in field codec of type sun4i_codec_quirks. Both the fucntion
argument and the codec field are of type const, so declare the
structures with this property as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sunxi/sun4i-codec.c

@@ -762,7 +762,7 @@ static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
 	{ "Mic1", NULL, "VMIC" },
 };
 
-static struct snd_soc_codec_driver sun4i_codec_codec = {
+static const struct snd_soc_codec_driver sun4i_codec_codec = {
 	.component_driver = {
 		.controls		= sun4i_codec_controls,
 		.num_controls		= ARRAY_SIZE(sun4i_codec_controls),
@@ -1068,7 +1068,7 @@ static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {
 	{ "Right ADC", NULL, "Right ADC Mixer" },
 };
 
-static struct snd_soc_codec_driver sun6i_codec_codec = {
+static const struct snd_soc_codec_driver sun6i_codec_codec = {
 	.component_driver = {
 		.controls		= sun6i_codec_codec_widgets,
 		.num_controls		= ARRAY_SIZE(sun6i_codec_codec_widgets),
@@ -1096,7 +1096,7 @@ static const struct snd_soc_dapm_widget sun8i_a23_codec_codec_widgets[] = {
 
 };
 
-static struct snd_soc_codec_driver sun8i_a23_codec_codec = {
+static const struct snd_soc_codec_driver sun8i_a23_codec_codec = {
 	.component_driver = {
 		.controls		= sun8i_a23_codec_codec_controls,
 		.num_controls		= ARRAY_SIZE(sun8i_a23_codec_codec_controls),

sound/soc/sunxi/sun8i-codec.c

@@ -360,7 +360,7 @@ static struct snd_soc_dai_driver sun8i_codec_dai = {
 	.ops = &sun8i_codec_dai_ops,
 };
 
-static struct snd_soc_codec_driver sun8i_soc_codec = {
+static const struct snd_soc_codec_driver sun8i_soc_codec = {
 	.component_driver = {
 		.dapm_widgets		= sun8i_codec_dapm_widgets,
 		.num_dapm_widgets	= ARRAY_SIZE(sun8i_codec_dapm_widgets),