bfd/

* elf32-vax.c (elf_vax_plt_sym_val): New function.
(elf_backend_plt_sym_val): Define.

opcodes/
* vax-dis.c (is_function_entry): Return success for synthetic
symbols too.
(is_plt_tail): New function.
(print_insn_vax): Decode PLT entry offset longword.