powerpc: should mem_end be assigned to dt_struct_end in flatten_device_tree()?

[Roel Kluin]

vi arch/powerpc/kernel/prom_init.c +1961 and note that in
flatten_device_tree() we do a

	RELOC(dt_struct_end) = PAGE_ALIGN(mem_start);

should that maybe be

	RELOC(dt_struct_end) = PAGE_ALIGN(mem_end);

thanks,

Roel