* elf.c (bfd_section_from_shdr): Make "name" const.

	* elf.c (bfd_section_from_shdr): Make "name" const.
	* elf-bfd.h (elf_backend_section_from_shdr): Likewise.
	* elf32-i370.c (i370_elf_section_from_shdr): Likewise.
	* elf32-ppc.c (ppc_elf_section_from_shdr): Likewise.
	* elf32-sh64.c (sh64_backend_section_from_shdr): Likewise.
	* elf32-v850.c (v850_elf_section_from_shdr): Likewise.
	* elf64-alpha.c (elf64_alpha_section_from_shdr): Likewise.
	* elf64-hppa.c (elf64_hppa_section_from_shdr): Likewise.
	* elf64-ppc.c (ppc64_elf_section_from_shdr): Likewise.
	* elfxx-ia64.c (elfNN_ia64_section_from_shdr): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_section_from_shdr): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_section_from_shdr): Likewise.