ASoC: rt5631: Adding the description of the codec

Signed-off-by: Krishna Mohan Dani <krishna.md@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index a68d173..7e43e97 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -487,7 +487,8 @@
 	depends on I2C
 
 config SND_SOC_RT5631
-	tristate
+	tristate "Realtek ALC5631/RT5631 CODEC"
+	depends on I2C
 
 config SND_SOC_RT5640
 	tristate