apalis-imx8: enable of_system_setup

Enable CONFIG_OF_SYSTEM_DEFAULT for Apalis iMX8.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
diff --git a/configs/apalis-imx8qm_defconfig b/configs/apalis-imx8qm_defconfig
index 4c27c33..fdc1e4e 100644
--- a/configs/apalis-imx8qm_defconfig
+++ b/configs/apalis-imx8qm_defconfig
@@ -9,6 +9,7 @@
 CONFIG_NR_DRAM_BANKS=3
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
+CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/toradex/apalis-imx8/apalis-imx8qm-imximage.cfg"
 CONFIG_LOG=y
 CONFIG_VERSION_VARIABLE=y