[U-Boot] [U-boot] CONFIG_OF_LIBFDT and CONFIG_LMB

Hi, experts:

It seems CONFIG_OF_LIBFDT and COFIG_LMB must be defined at same time.

Because boot_prep_linux() function will call boot_relocate_fdt() function.

And boot_relocate_fdt() function will call lmb related function.

Right?

Best wishes,