ASoC: Constify of_phandle_args in snd_soc_dai_link_component

ASoC core code does not modify contents of 'of_phandle_args' in 'struct
snd_soc_dai_link_component', so the pointer can be made as a pointer to
const.  This makes code safer, serves as clear annotation of core's
intentions and allows putting pointed structures in rodata (if ever
applicable).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240617-n-asoc-const-auto-selectable-formats-v1-2-8004f346ee38@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc.h

@@ -675,7 +675,7 @@ struct snd_soc_dai_link_component {
 	const char *name;
 	struct device_node *of_node;
 	const char *dai_name;
-	struct of_phandle_args *dai_args;
+	const struct of_phandle_args *dai_args;
 };
 
 /*