ASoC: dapm: Make sure we update the bias level for CODECs with no op

Commit 412312 (ASoC: dapm: Make sure all dapm contexts are updated)
ensures that we update non-CODEC DAPM contexts but means that if a
CODEC has no set_bias_level() operation it'll not be updated. Fix
that.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/soc-dapm.c

@@ -291,6 +291,8 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm,
 		if (dapm->codec->driver->set_bias_level)
 			ret = dapm->codec->driver->set_bias_level(dapm->codec,
 								  level);
+		else
+			dapm->bias_level = level;
 	} else
 		dapm->bias_level = level;