configs: mt8183_evb_defconfig: enable device-tree overlays

Enable device-tree overlays.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
diff --git a/configs/mt8183_evb_defconfig b/configs/mt8183_evb_defconfig
index 99797db..313160d 100644
--- a/configs/mt8183_evb_defconfig
+++ b/configs/mt8183_evb_defconfig
@@ -73,4 +73,5 @@
 CONFIG_USB_GADGET_PRODUCT_NUM=0x201c
 CONFIG_WDT=y
 CONFIG_WDT_MTK=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 # CONFIG_EFI_LOADER is not set