ARM: imx_v6_v7_defconfig: change snd soc tlv320aic3x to i2c variant

Change CONFIG_SND_SOC_TLV320AIC3X to CONFIG_SND_SOC_TLV320AIC3X_I2C.
I did double check all current mainline device trees and they are all
using the I2C rather than the SPI variant.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -316,7 +316,7 @@ CONFIG_SND_SOC_IMX_MC13783=y
 CONFIG_SND_SOC_FSL_ASOC_CARD=y
 CONFIG_SND_SOC_AC97_CODEC=y
 CONFIG_SND_SOC_CS42XX8_I2C=y
-CONFIG_SND_SOC_TLV320AIC3X=y
+CONFIG_SND_SOC_TLV320AIC3X_I2C=y
 CONFIG_SND_SOC_WM8960=y
 CONFIG_SND_SOC_WM8962=y
 CONFIG_SND_SIMPLE_CARD=y