(h8_elf_howto_table): Use it for SPECIAL_FUNCTION field in
all relocations.
(elf32_h8_final_link_relocate): Treat R_H8_DIR24A8 like 32bit
relocations. Fix problems with the true 24bit reloc R_H8_DIR24R8.
Fix minor problems with 8bit and 16bit PC relative relocations.
(elf32_h8_info_to_howto): Parameter elf_reloc is used.
(elf32_h8_final_link_relocate): New function for linker.
(elf32_h8_relocate_section): Similarly.
(elf_backend_relocate_section): Define.
(h8300_scan): Handle architecture:machine encodings typically
found in linker scripts.
* elf.c (prep_headers): Do not try to do H8 machine recognition
here.
* elf32-h8300.c: Add some missing prototypes.
(elf32_h8_mach, elf32_h8_final_write_processing): New functions.
(elf32_h8_object_p): Similarly.