* elf32-m32r.c (m32r_elf_howto_table): Use special function for LO16.

	* elf32-m32r.c (m32r_elf_howto_table): Use special function for LO16.
	(m32r_hi16_list): New static local.
	(m32r_elf_hi16_reloc): Don't perform reloc, just queue it up.
	(m32r_elf_do_hi16_reloc): Delete.
	(m32r_elf_relocate_hi16): New function.
	(m32r_elf_lo16_reloc): New function.
	(m32r_elf_relocate_section): For HI16 relocs, scan for corresponding
	LO16 reloc.

	* elf32-m32r.c (m32r_elf_create_linker_section): Delete.
	(m32r_elf_add_symbol_hook): Rewrite _SDA_BASE_ support.
	(m32r_elf_final_sda_base): New function.
	(m32r_elf_relocate_section): Rewrite sdata support.
	(m32r_elf_finish_dynamic_sections): Delete.
Bring over from m32r-970131 branch.