ASoC: rt286: Fix upper byte in DMIC2 configuration

This HDA verb sets the upper byte of the Configuration Default register, so
only an 8-bit value should be used. For the rt298, the same fix was applied
in commit f8f2dc4a ("ASoC: rt298: fix wrong setting of gpio2_en").
Signed-off-by: David Ward <david.ward@gatech.edu>
Link: https://lore.kernel.org/r/20210418134658.4333-2-david.ward@gatech.eduReviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt286.c

@@ -1204,7 +1204,7 @@ static int rt286_i2c_probe(struct i2c_client *i2c,
 	mdelay(10);
 
 	if (!rt286->pdata.gpio2_en)
-		regmap_write(rt286->regmap, RT286_SET_DMIC2_DEFAULT, 0x4000);
+		regmap_write(rt286->regmap, RT286_SET_DMIC2_DEFAULT, 0x40);
 	else
 		regmap_write(rt286->regmap, RT286_SET_DMIC2_DEFAULT, 0);