ASoC: tlv320adcx140: Fix GPO register start address

The header was updated to align with the data sheet to start the GPO_CFG
at GPO_CFG0.  The code was not updated to the change and therefore the
GPO_CFG0 register was not written to.

Fixes: 6617cff6 ("ASoC: tlv320adcx140: Add GPO configuration and drive output config")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200730142419.28205-1-dmurphy@ti.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tlv320adcx140.c

@@ -790,7 +790,7 @@ static int adcx140_configure_gpo(struct adcx140_priv *adcx140)
 
 		gpo_output_val = gpo_outputs[0] << ADCX140_GPO_SHIFT |
 				 gpo_outputs[1];
-		ret = regmap_write(adcx140->regmap, ADCX140_GPO_CFG1 + i,
+		ret = regmap_write(adcx140->regmap, ADCX140_GPO_CFG0 + i,
 				   gpo_output_val);
 		if (ret)
 			return ret;