recent mips changes break mips-sgi-irix5.3 target (+patch)

[Jeffrey A Law]

  > 1998-01-22  scott snyder  <snyder@d0sgif.fnal.gov>
  > 
  > 	* config/mips/mips.c (function_prologue): Use
  > 	HARD_FRAME_POINTER_REGNUM in .frame directive instead of
  > 	FRAME_POINTER_REGNUM.
Thanks.  Installed.

jeff