ASoC: tlv320aic32x4: Add support for tlv320aic32x6

Add support for the tlv320aic32x6 family of devices.
These devices share the same register set as the tlv320aic32x4
and this driver can be re-used.

TLV320aic32x6 data sheets are here:
tlv320aic3256 - http://www.ti.com/lit/gpn/tlv320aic3256
tlv320aic3206 - http://www.ti.com/lit/gpn/tlv320aic3206

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tlv320aic32x4-i2c.c

@@ -47,12 +47,14 @@ static int aic32x4_i2c_remove(struct i2c_client *i2c)
 
 static const struct i2c_device_id aic32x4_i2c_id[] = {
 	{ "tlv320aic32x4", 0 },
+	{ "tlv320aic32x6", 1 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);
 
 static const struct of_device_id aic32x4_of_id[] = {
 	{ .compatible = "ti,tlv320aic32x4", },
+	{ .compatible = "ti,tlv320aic32x6", },
 	{ /* senitel */ }
 };
 MODULE_DEVICE_TABLE(of, aic32x4_of_id);