* elf32-mips.c (NEWABI_P): New define.

	* elf32-mips.c (NEWABI_P): New define.
	(USE_REL): Remove, replaced by
	(elf_backend_may_use_rel_p): New define.
	(elf_backend_may_use_rela_p): Likewise.
	(elf_backend_default_use_rela_p): Likewise.
	(elf_mips_howto_table): Rename to elf_mips_howto_table_rel.
	Fix some relocation definitions.
	(elf_mips_howto_table_rela): New RELA relocation definitions for
	NewABI support.
	(mips32_64bit_reloc): Use the renamed elf_mips_howto_table_rel.
	(bfd_elf32_bfd_reloc_type_lookup): Likewise.
	(mips_rtype_to_howto): Likewise.
	(_bfd_mips_elf_relocate_section): Likewise.
	(_bfd_mips_elf_object_p): Typo.
	(elf_backend_sign_extend_vma): Reordered together with many other
	defines nearby to resemble the order of declaration in the header
	file.