protocol.
* config/idt.mt: New file; uses remote-mips.c
* configure.in (mips-idt-ecoff): New target; uses idt.mt.
* mips-tdep.c (mips_fpu): New variable; controls use of MIPS
floating point coprocessor.
(mips_push_dummy_frame): If not mips_fpu, don't save floating
point registers.
(mips_pop_frame): If not mips_fpu, don't restore floating point
registers.
(_initialize_mips_tdep): New function; let the user reset mips_fpu
variable.
* tm-mips.h (EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE): If not
mips_fpu, don't use fp0 as floating point return register.
(FIX_CALL_DUMMY): If not mips_fpu, don't save floating point
registers.
Also added remote-mips.c to .Sanitize file.
