ASoC: Add snd_soc_of_put_dai_link_codecs() helper function

The code for dereferencing device nodes in the 'codecs' array is moved
to a separate function so we can avoid open coding that in drivers.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc.h

@@ -1807,6 +1807,7 @@ int snd_soc_of_get_dai_name(struct device_node *of_node,
 int snd_soc_of_get_dai_link_codecs(struct device *dev,
 				   struct device_node *of_node,
 				   struct snd_soc_dai_link *dai_link);
+void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link);
 
 int snd_soc_add_dai_link(struct snd_soc_card *card,
 				struct snd_soc_dai_link *dai_link);