ASoC: rt5631: Adding the description of the codec

Signed-off-by: NKrishna Mohan Dani <krishna.md@samsung.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -487,7 +487,8 @@ config SND_SOC_RT286
 	depends on I2C
 
 config SND_SOC_RT5631
-	tristate
+	tristate "Realtek ALC5631/RT5631 CODEC"
+	depends on I2C
 
 config SND_SOC_RT5640
 	tristate