ASoC: cs53l30: Set idle_bias_off true

The driver is using the set_bias_level to control the power on and
off so it should get SND_SOC_BIAS_OFF in order to proceed normal
powering sequences. This patch enables the idle_bias_off option so
the DAPM core will set the bias level to SND_SOC_BIAS_OFF instead
of stopping at SND_SOC_BIAS_STANDBY.

Signed-off-by: Nicolin Chen <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/codecs/cs53l30.c

···
 static struct snd_soc_codec_driver cs53l30_driver = {
 	.probe = cs53l30_codec_probe,
 	.set_bias_level = cs53l30_set_bias_level,
+	.idle_bias_off = true,
 
 	.dapm_widgets = cs53l30_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(cs53l30_dapm_widgets),