ASoC: Add Freescale SGTL5000 codec support

Add Freescale SGTL5000 codec support.
Supported features:
 - line-in and mic input
 - headphone and line-out output
 - line-in bypass ADC and DAC to headphone
 - 16, 20, 24, 32 bit audio
 - 8 ~ 96k sample rates

Signed-off-by: Zeng Zhaoming <zhaoming.zeng@freescale.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index e239345..c04da18 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -33,6 +33,7 @@
 	select SND_SOC_MAX98088 if I2C
 	select SND_SOC_MAX9877 if I2C
 	select SND_SOC_PCM3008
+	select SND_SOC_SGTL5000 if I2C
 	select SND_SOC_SN95031 if INTEL_SCU_IPC
 	select SND_SOC_SPDIF
 	select SND_SOC_SSM2602 if I2C
@@ -182,6 +183,10 @@
 config SND_SOC_PCM3008
        tristate
 
+#Freescale sgtl5000 codec
+config SND_SOC_SGTL5000
+	tristate
+
 config SND_SOC_SN95031
 	tristate