imx: mx7dsabresd: disable obsolete VIDEO config

DM_VIDEO conversion deadline has passed, disable VIDEO config.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>

configs/mx7dsabresd_defconfig

@@ -84,7 +84,7 @@ CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_ASIX=y
-CONFIG_VIDEO=y
+# CONFIG_VIDEO is not set
 CONFIG_SPLASH_SCREEN=y
 CONFIG_SPLASH_SCREEN_ALIGN=y
 CONFIG_VIDEO_BMP_RLE8=y

configs/mx7dsabresd_qspi_defconfig

@@ -91,7 +91,7 @@ CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_ASIX=y
-CONFIG_VIDEO=y
+# CONFIG_VIDEO is not set
 CONFIG_SPLASH_SCREEN=y
 CONFIG_SPLASH_SCREEN_ALIGN=y
 CONFIG_VIDEO_BMP_RLE8=y