update LIBFDT to LIBC_FDT update CONFIG_LIBFDT_DTC_VERSION to CONFIG_LIBC_FDT_DTC_VERSION move dtc source code to fdt/dtc move version_gen.h from apps/system/fdt to current dir Signed-off-by: liaoao <liaoao@xiaomi.com>
Signed-off-by: liaoao <liaoao@xiaomi.com>