ASoC: wm0010: Replace direct snd_soc_codec dapm field access

The dapm field of the snd_soc_codec struct is eventually going to be
removed, in preparation for this replace all manual access to
codec->dapm.bias_level with snd_soc_codec_get_bias_level().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm0010.c

@@ -751,13 +751,13 @@ static int wm0010_set_bias_level(struct snd_soc_codec *codec,
 
 	switch (level) {
 	case SND_SOC_BIAS_ON:
-		if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE)
+		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_PREPARE)
 			wm0010_boot(codec);
 		break;
 	case SND_SOC_BIAS_PREPARE:
 		break;
 	case SND_SOC_BIAS_STANDBY:
-		if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE) {
+		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_PREPARE) {
 			mutex_lock(&wm0010->lock);
 			wm0010_halt(codec);
 			mutex_unlock(&wm0010->lock);