arm: udoo: Convert to distro config

Instead of keeping a custom environment, use a more generic approach
by switching to distro config.

Signed-off-by: Dirk Meul <dirk.meul@rwth-aachen.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/udoo_defconfig b/configs/udoo_defconfig
index 52de8ca..bfaef13 100644
--- a/configs/udoo_defconfig
+++ b/configs/udoo_defconfig
@@ -9,8 +9,10 @@
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL=y
 CONFIG_SPL_LIBDISK_SUPPORT=y
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg"
+CONFIG_BOOTCOMMAND="run findfdt; run distro_bootcmd"
 CONFIG_BOOTDELAY=3
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_BOARD_EARLY_INIT_F=y