davinci: Kconfig: add dm646x ASoC support

arch/arm/configs/davinci_all_defconfig

@@ -1088,9 +1088,16 @@ CONFIG_SND_USB=y
 # CONFIG_SND_USB_AUDIO is not set
 # CONFIG_SND_USB_CAIAQ is not set
 CONFIG_SND_SOC=m
-# CONFIG_SND_DAVINCI_SOC is not set
+CONFIG_SND_DAVINCI_SOC=m
+CONFIG_SND_DAVINCI_SOC_I2S=m
+CONFIG_SND_DAVINCI_SOC_MCASP=m
+CONFIG_SND_DAVINCI_SOC_EVM=m
+CONFIG_SND_DM6467_SOC_EVM=m
+# CONFIG_SND_DAVINCI_SOC_SFFSDR is not set
 CONFIG_SND_SOC_I2C_AND_SPI=m
 # CONFIG_SND_SOC_ALL_CODECS is not set
+CONFIG_SND_SOC_SPDIF=m
+CONFIG_SND_SOC_TLV320AIC3X=m
 # CONFIG_SOUND_PRIME is not set
 CONFIG_HID_SUPPORT=y
 CONFIG_HID=m