* mips-tdep.c (heuristic_proc_start): Avoid long delays

* mips-tdep.c (heuristic_proc_start):  Avoid long delays
for remote MIPS by limiting heuristic to 200 byte search.
(heuristic_proc_desc):  Byte-swapping.
(mips_print_register):  Cope with failure of
read_relative_register_raw_bytes.  Byte-swap integers for
printing.
* mips-pinsn.c (print_insn):  Byte-swap instruction.