apalis/colibri-imx8/8x: add overlay support for i.mx 8/8x-based soms

There is no "apply" command enabled for "fdt".
Enable "apply" command to allow overlays to be applied.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
diff --git a/configs/apalis-imx8_defconfig b/configs/apalis-imx8_defconfig
index dba320a..72bc4fd 100644
--- a/configs/apalis-imx8_defconfig
+++ b/configs/apalis-imx8_defconfig
@@ -85,4 +85,5 @@
 CONFIG_FSL_LPUART=y
 CONFIG_DM_THERMAL=y
 CONFIG_IMX_SCU_THERMAL=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 # CONFIG_EFI_LOADER is not set
diff --git a/configs/colibri-imx8x_defconfig b/configs/colibri-imx8x_defconfig
index e4c4189..83f3999 100644
--- a/configs/colibri-imx8x_defconfig
+++ b/configs/colibri-imx8x_defconfig
@@ -80,4 +80,5 @@
 CONFIG_FSL_LPUART=y
 CONFIG_DM_THERMAL=y
 CONFIG_IMX_SCU_THERMAL=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 # CONFIG_EFI_LOADER is not set