fix: defconfig: Enable OF_CONTROL for display5_factory

This change fixes issue with building display5 "factory" U-Boot variant
when the display5 board gains DM/DTS support.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
diff --git a/configs/display5_factory_defconfig b/configs/display5_factory_defconfig
index 5b79057..070de97 100644
--- a/configs/display5_factory_defconfig
+++ b/configs/display5_factory_defconfig
@@ -62,6 +62,8 @@
 CONFIG_MTDPARTS_DEFAULT="mtdparts=02008000.spi.1:128k(SPL),1m(u-boot),64k(env1),64k(env2),4m(swu-kernel),16m(swu-initramfs),1m(factory),-(reserved)"
 # CONFIG_SPL_EFI_PARTITION is not set
 CONFIG_PARTITION_TYPE_GUID=y
+CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="imx6q-display5"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_SF=y
@@ -88,4 +90,3 @@
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_IMX_WATCHDOG=y
-CONFIG_OF_LIBFDT=y