ARM: imx: imx_v6_v7_defconfig: Select CONFIG_DRM_IMX_TVE

Let the mx53 TVE driver be built by default.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -208,6 +208,7 @@ CONFIG_IMX_SDMA=y
 CONFIG_MXS_DMA=y
 CONFIG_STAGING=y
 CONFIG_DRM_IMX=y
+CONFIG_DRM_IMX_TVE=y
 CONFIG_DRM_IMX_IPUV3_CORE=y
 CONFIG_DRM_IMX_IPUV3=y
 CONFIG_COMMON_CLK_DEBUG=y