ASoC: sh: switch to use rtd->id from rtd->num

Now rtd->num is renamed to rtd->id. Let's switch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87v7xib85e.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: morimoto

sound/soc/renesas/rcar/core.c

@@ -1843,7 +1843,7 @@ int rsnd_kctrl_new(struct rsnd_mod *mod,
 		.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name		= name,
 		.info		= rsnd_kctrl_info,
-		.index		= rtd->num,
+		.index		= rtd->id,
 		.get		= rsnd_kctrl_get,
 		.put		= rsnd_kctrl_put,
 	};