ASoC: simple-card-utils: add asoc_simple_card_set_dailink_name()

Current simple-card is creating dai_link->name / dai_link->stream_name.
These are based on CPU + Codec name, or "fe.CPU" or "be.Codec" if it
was DPCM.
This patch adds asoc_simple_card_set_dailink_name() and set dailink
name as common method.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index 50aa7b2..b88a8dc 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -27,5 +27,8 @@
 				  struct device_node *codec,
 				  char *prefix,
 				  unsigned int *retfmt);
+int asoc_simple_card_set_dailink_name(struct device *dev,
+				      struct snd_soc_dai_link *dai_link,
+				      const char *fmt, ...);
 
 #endif /* __SIMPLE_CARD_CORE_H */