ASoC: loongson: Fix component check failed on FDT systems

Add missing snd_soc_dai_link.platforms assignment to avoid
soc_dai_link_sanity_check() failure.

Fixes: d240286 ("ASoC: loongson: Add Loongson ASoC Sound Card Support")
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://patch.msgid.link/6645888f2f9e8a1d8d799109f867d0f97fd78c58.1728459624.git.zhoubinbin@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/loongson/loongson_card.c

@@ -144,6 +144,7 @@ static int loongson_card_parse_of(struct loongson_card_data *data)
 			dev_err(dev, "getting cpu dlc error (%d)\n", ret);
 			goto err;
 		}
+		loongson_dai_links[i].platforms->of_node = loongson_dai_links[i].cpus->of_node;
 
 		ret = snd_soc_of_get_dlc(codec, NULL, loongson_dai_links[i].codecs, 0);
 		if (ret < 0) {