PR 12763

	PR 12763
	* elf.c (_bfd_elf_make_section_from_shdr): Set up TLS section LMAs
	from PT_TLS header.
	(_bfd_elf_map_sections_to_segments): Don't create a final PT_LOAD
	segment if just for .tbss.
	(assign_file_positions_for_load_sections): Don't report "can't
	allocate in segment" errors for .tbss.
	(assign_file_positions_for_non_load_sections): Don't set p_filesz
	from SHT_NOBITS section filepos.