ARM: mvebu: clearfog: run-time selection of DT file

Set the kernel device-tree file (fdtfile environment variable) based on
run-time detection of the platform.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index fdd3968..bc5eaa5 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -91,6 +91,7 @@
 config TARGET_CLEARFOG
 	bool "Support ClearFog"
 	select 88F6820
+	select BOARD_LATE_INIT
 
 config TARGET_HELIOS4
 	bool "Support Helios4"