ARM: imx_v6_v7_defconfig: Select CONFIG_SND_SOC_WM8962 explicitly

Currently CONFIG_SND_SOC_WM8962 is selected via SND_SOC_IMX_WM8962
machine driver option.

SND_SOC_IMX_WM8962 will be removed in the next kernel cycle, so
select the codec driver directly so that it can still be used
by default via the generic fsl-asoc-card machine driver.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -284,6 +284,7 @@ CONFIG_SND_SOC_AC97_CODEC=y
 CONFIG_SND_SOC_CS42XX8_I2C=y
 CONFIG_SND_SOC_TLV320AIC3X=y
 CONFIG_SND_SOC_WM8960=y
+CONFIG_SND_SOC_WM8962=y
 CONFIG_SND_SIMPLE_CARD=y
 CONFIG_HID_MULTITOUCH=y
 CONFIG_USB=y