FILO: Pass LIBCONFIG_PATH variable to FILOs make

This fixes the build for HEAD/master.
Current stable will not work, because it is too old for recent corboot.

Change-Id: I9dfd5de472d4f58f07147cb9b9bb0b543f228561
Signed-off-by: Thomas Gstädtner <thomas@gstaedtner.net>
Reviewed-on: http://review.coreboot.org/311
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
1 file changed