* mips-dis.c (print_insn_little_mips): Cast return value from bfd_getl32 from

* mips-dis.c (print_insn_little_mips): Cast return value from bfd_getl32 from
bfd_vma to unsigned long, because _print_insn_mips expects an unsigned long,
and that might be fewer words of argument storage (e.g., if bfd_vma is long
long on a 32-bit machine).
(print_insn_big_mips): Likewise with bfd_getb32 value.
(_print_insn_mips): Now static.