ASoC: da7219: Update REFERENCES reg default, in-line with HW

In current AB silicon, BIAS_EN field is enabled by default in the
REFERENCES register, so the regmap default value should reflect
this.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c
index 9136a8b..0a177ae 100644
--- a/sound/soc/codecs/da7219.c
+++ b/sound/soc/codecs/da7219.c
@@ -1788,7 +1788,7 @@
 	{ DA7219_DIG_ROUTING_DAC, 0x32 },
 	{ DA7219_DAI_OFFSET_LOWER, 0x00 },
 	{ DA7219_DAI_OFFSET_UPPER, 0x00 },
-	{ DA7219_REFERENCES, 0x00 },
+	{ DA7219_REFERENCES, 0x08 },
 	{ DA7219_MIXIN_L_SELECT, 0x00 },
 	{ DA7219_MIXIN_L_GAIN, 0x03 },
 	{ DA7219_ADC_L_GAIN, 0x6F },