Add a codec driver for SI476X MFD

This commit add a sound codec driver for Silicon Laboratories 476x
series of AM/FM radio chips.

Signed-off-by: Andrey Smirnov <andrey.smirnov@convergeddevices.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 9bd4d95..c55d2d7 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -45,6 +45,7 @@
 snd-soc-alc5623-objs := alc5623.o
 snd-soc-alc5632-objs := alc5632.o
 snd-soc-sigmadsp-objs := sigmadsp.o
+snd-soc-si476x-objs := si476x.o
 snd-soc-sn95031-objs := sn95031.o
 snd-soc-spdif-tx-objs := spdif_transciever.o
 snd-soc-spdif-rx-objs := spdif_receiver.o
@@ -164,6 +165,7 @@
 obj-$(CONFIG_SND_SOC_RT5631)	+= snd-soc-rt5631.o
 obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o
 obj-$(CONFIG_SND_SOC_SIGMADSP)	+= snd-soc-sigmadsp.o
+obj-$(CONFIG_SND_SOC_SI476X)	+= snd-soc-si476x.o
 obj-$(CONFIG_SND_SOC_SN95031)	+=snd-soc-sn95031.o
 obj-$(CONFIG_SND_SOC_SPDIF)	+= snd-soc-spdif-rx.o snd-soc-spdif-tx.o
 obj-$(CONFIG_SND_SOC_SSM2602)	+= snd-soc-ssm2602.o