ASoC: soc-component: tidyup snd_soc_pcm_component_sync_stop()

commit 1e5ddb6b ("ASoC: component: Add sync_stop PCM ops")
added snd_soc_pcm_component_sync_stop(), but it is checking
ioctrl instead of sync_stop. This is bug.
This patch fixup it.

Fixes: commit 1e5ddb6b ("ASoC: component: Add sync_stop PCM ops")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/8736av7a8c.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-component.c

@@ -451,7 +451,7 @@ int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
 	int i, ret;
 
 	for_each_rtd_components(rtd, i, component) {
-		if (component->driver->ioctl) {
+		if (component->driver->sync_stop) {
 			ret = component->driver->sync_stop(component,
 							   substream);
 			if (ret < 0)