ASoC: Set idle_bias_off flag in snd_soc_codec_driver

Since commit 33c5f969 "ASoC: Allow idle_bias_off to be specified in CODEC
drivers", now we can set idle_bias_off flag in struct snd_soc_codec_driver
for devices can unconditionally support idle_bias_off.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index c06c3e4..2c957c8 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -1395,7 +1395,6 @@
 
 	codec->control_data = dac33->control_data;
 	codec->hw_write = (hw_write_t) i2c_master_send;
-	codec->dapm.idle_bias_off = 1;
 	dac33->codec = codec;
 
 	/* Read the tlv320dac33 ID registers */
@@ -1476,6 +1475,7 @@
 	.read = dac33_read_reg_cache,
 	.write = dac33_write_locked,
 	.set_bias_level = dac33_set_bias_level,
+	.idle_bias_off = true,
 	.reg_cache_size = ARRAY_SIZE(dac33_reg),
 	.reg_word_size = sizeof(u8),
 	.reg_cache_default = dac33_reg,