ASoC: audio-graph-card: enable mclk-fs on codec node

Current audio-graph-card is supporting mclk-fs on CPU node
side only. But having Codec node also is good idea.
It will be just ignored if not defined.

"rcpu_ep" is same as "cpu_ep", This patch tidyup it, too.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/generic/audio-graph-card.c

@@ -182,7 +182,8 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	of_property_read_u32(rcpu_ep, "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(cpu_ep,   "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(codec_ep, "mclk-fs", &dai_props->mclk_fs);
 
 	ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link);
 	if (ret < 0)