imx8mm-cl-iot-gate-optee: add CONFIG_SPL_MMC and CONFIG_SPL_SERIAL

Previously these two options are called CONFIG_SPL_MMC_SUPPORT
and CONFIG_SPL_SERIAL_SUPPORT. During the transition they are
removed by accident. Thus adding them back.

Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Cc: uboot-imx <uboot-imx@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/imx8mm-cl-iot-gate-optee_defconfig b/configs/imx8mm-cl-iot-gate-optee_defconfig
index 777d452..830ab69 100644
--- a/configs/imx8mm-cl-iot-gate-optee_defconfig
+++ b/configs/imx8mm-cl-iot-gate-optee_defconfig
@@ -13,6 +13,8 @@
 CONFIG_DEFAULT_DEVICE_TREE="imx8mm-cl-iot-gate-optee"
 CONFIG_SPL_TEXT_BASE=0x7E1000
 CONFIG_TARGET_IMX8MM_CL_IOT_GATE_OPTEE=y
+CONFIG_SPL_MMC=y
+CONFIG_SPL_SERIAL=y
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL=y
 CONFIG_DISTRO_DEFAULTS=y