ASoC: audio-graph-scu-card: use asoc_simple_card_of_parse_tdm()

Current simple card drivers are using asoc_simple_dai's tx_slot_mask,
rx_slot_mask, slots, slot_width directly to parse TDM.
Encapsulation is one of simple card util's purpose.
Let's use asoc_simple_card_of_parse_tdm for it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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

@@ -167,11 +167,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep,
 					      "prefix");
 	}
 
-	ret = snd_soc_of_parse_tdm_slot(ep,
-					&dai_props->tx_slot_mask,
-					&dai_props->rx_slot_mask,
-					&dai_props->slots,
-					&dai_props->slot_width);
+	ret = asoc_simple_card_of_parse_tdm(ep, dai_props);
 	if (ret)
 		return ret;