ASoC: soc-dapm: cleanup cppcheck warning at dapm_seq_check_event()

This patch cleanups below cppcheck warning.

sound/soc/soc-dapm.c:1531:13: style: The scope of the variable 'ret' can be reduced. [variableScope]
 int power, ret;
            ^

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87r1f8u24n.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-dapm.c

@@ -1528,7 +1528,7 @@ static void dapm_seq_check_event(struct snd_soc_card *card,
 				 struct snd_soc_dapm_widget *w, int event)
 {
 	const char *ev_name;
-	int power, ret;
+	int power;
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
@@ -1564,6 +1564,8 @@ static void dapm_seq_check_event(struct snd_soc_card *card,
 		return;
 
 	if (w->event && (w->event_flags & event)) {
+		int ret;
+
 		pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n",
 			w->name, ev_name);
 		soc_dapm_async_complete(w->dapm);