ASoC: Fix merge errors with flush_scheduled_work() removal

delayed_work was moved to dapm in the commit
ce6120cca2589ede530200c7cfe11ac9f144333c
    ASoC: Decouple DAPM from CODECs

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 7474571..73507e7 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1587,7 +1587,7 @@
 /* power down chip */
 static int wm8753_remove(struct snd_soc_codec *codec)
 {
-	flush_delayed_work_sync(&codec->delayed_work);
+	flush_delayed_work_sync(&codec->dapm.delayed_work);
 	wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
 	return 0;