ASoC: rsnd: avoid pointless loop in rsnd_mod_interrupt()

Current Renesas sound driver doesn't have 1:1 relationship between
stream <-> mod because it is supporting MIX. Because of this reason
rsnd_mod_interrupt() is searching correspond mod by for loop.
But this loop is not needed, because each mod has own type.
This patch avoid pointless loop by using mod->type.

This patch is good for SSI-parent support, because stream might have
2 SSI as SSI-parent/child. SSI interrupt handler will be called twice
if stream has SSI-parent without this patch.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sh/rcar/core.c

@@ -192,20 +192,17 @@ void rsnd_mod_interrupt(struct rsnd_mod *mod,
 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 	struct rsnd_dai_stream *io;
 	struct rsnd_dai *rdai;
-	int i, j;
-
-	for_each_rsnd_dai(rdai, priv, j) {
+	int i;
 
-		for (i = 0; i < RSND_MOD_MAX; i++) {
+	for_each_rsnd_dai(rdai, priv, i) {
 		io = &rdai->playback;
-			if (mod == io->mod[i])
+		if (mod == io->mod[mod->type])
 			callback(mod, io);
 
 		io = &rdai->capture;
-			if (mod == io->mod[i])
+		if (mod == io->mod[mod->type])
 			callback(mod, io);
 	}
-	}
 }
 
 int rsnd_io_is_working(struct rsnd_dai_stream *io)