config: evb-rk3399: enable make uboot.itb

Similar to firefly 3399 enable the ability to create a FIT image
with combined arm-trusted-firmware.
Signed-off-by: NPeter Robinson <pbrobinson@gmail.com>
Acked-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

configs/evb-rk3399_defconfig

@@ -11,6 +11,7 @@ CONFIG_DEFAULT_DEVICE_TREE="rk3399-evb"
 CONFIG_DEBUG_UART=y
 CONFIG_FIT=y
 CONFIG_SPL_LOAD_FIT=y
+CONFIG_SPL_FIT_GENERATOR="arch/arm/mach-rockchip/make_fit_atf.py"
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_SPL_STACK_R=y
@@ -25,6 +26,8 @@ CONFIG_CMD_TIME=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
 CONFIG_SPL_OF_PLATDATA=y
+CONFIG_SPL_ATF=y
+CONFIG_SPL_ATF_NO_PLATFORM_PARAM=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_REGMAP=y