ARM: imx_v6_v7_defconfig: Select IPUV3 driver

Let IPUV3 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

@@ -158,6 +158,7 @@ CONFIG_V4L_PLATFORM_DRIVERS=y
 CONFIG_MEDIA_CAMERA_SUPPORT=y
 CONFIG_SOC_CAMERA=y
 CONFIG_SOC_CAMERA_OV2640=y
+CONFIG_DRM=y
 CONFIG_VIDEO_MX3=y
 CONFIG_FB=y
 CONFIG_LCD_PLATFORM=y
@@ -199,6 +200,10 @@ CONFIG_RTC_DRV_MXC=y
 CONFIG_DMADEVICES=y
 CONFIG_IMX_SDMA=y
 CONFIG_MXS_DMA=y
+CONFIG_STAGING=y
+CONFIG_DRM_IMX=y
+CONFIG_DRM_IMX_IPUV3_CORE=y
+CONFIG_DRM_IMX_IPUV3=y
 CONFIG_COMMON_CLK_DEBUG=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT2_FS=y