ASoC: tlv320aic31xx: Add text in Kconfig so the codec can be used with simple-card

In order to show the option under 'CODEC drivers' we need to have text in
Kconfig.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 9115ab8..0ad292f 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -533,7 +533,7 @@
 	depends on SPI
 
 config SND_SOC_TLV320AIC31XX
-        tristate
+	tristate "Texas Instruments TLV320AIC31xx CODECs"
 	depends on I2C
 	select REGMAP_I2C