ASoC: rt5659: add rt5659 codec driver

This is the initial codec driver for rt5659.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index cfdafc4..f22c66b 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -93,6 +93,7 @@
 	select SND_SOC_RT5640 if I2C
 	select SND_SOC_RT5645 if I2C
 	select SND_SOC_RT5651 if I2C
+	select SND_SOC_RT5659 if I2C
 	select SND_SOC_RT5670 if I2C
 	select SND_SOC_RT5677 if I2C && SPI_MASTER
 	select SND_SOC_SGTL5000 if I2C
@@ -526,11 +527,13 @@
 	default y if SND_SOC_RT5640=y
 	default y if SND_SOC_RT5645=y
 	default y if SND_SOC_RT5651=y
+	default y if SND_SOC_RT5659=y
 	default y if SND_SOC_RT5670=y
 	default y if SND_SOC_RT5677=y
 	default m if SND_SOC_RT5640=m
 	default m if SND_SOC_RT5645=m
 	default m if SND_SOC_RT5651=m
+	default m if SND_SOC_RT5659=m
 	default m if SND_SOC_RT5670=m
 	default m if SND_SOC_RT5677=m
 
@@ -562,6 +565,9 @@
 config SND_SOC_RT5651
 	tristate
 
+config SND_SOC_RT5659
+	tristate
+
 config SND_SOC_RT5670
 	tristate