configs: stm32f469-discovery: Add DISTRO_DEFAULT support

Add DISTRO_DEFAULT support to be able to boot on mmc
by default on boot.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/configs/stm32f469-discovery_defconfig b/configs/stm32f469-discovery_defconfig
index a55476f..7353c51 100644
--- a/configs/stm32f469-discovery_defconfig
+++ b/configs/stm32f469-discovery_defconfig
@@ -5,25 +5,22 @@
 CONFIG_STM32F4=y
 CONFIG_TARGET_STM32F469_DISCOVERY=y
 CONFIG_DEFAULT_DEVICE_TREE="stm32f469-disco"
-CONFIG_ENV_VARS_UBOOT_CONFIG=y
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_BOOTDELAY=3
+# CONFIG_USE_BOOTCOMMAND is not set
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_BOARD_EARLY_INIT_F=y
-CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="U-Boot > "
-CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_BOOTEFI_HELLO_COMPILE is not set
 CONFIG_CMD_IMLS=y
 CONFIG_CMD_GPT=y
 # CONFIG_RANDOM_UUID is not set
 CONFIG_CMD_MMC=y
 # CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_MII is not set
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_TIMER=y
-CONFIG_CMD_EXT2=y
-CONFIG_CMD_EXT4=y
-CONFIG_CMD_FAT=y
-CONFIG_CMD_FS_GENERIC=y
+# CONFIG_ISO_PARTITION is not set
 CONFIG_OF_CONTROL=y
 CONFIG_OF_EMBED=y
 CONFIG_DM_MMC=y