Add some Irix 5 support, mostly from Kazumoto Kojima

	Add some Irix 5 support, mostly from Kazumoto Kojima
        <kkojima@info.kanagawa-u.ac.jp>:
	* emulparams/elf32bmip.sh (SCRIPT_NAME): Change to elfmips.
	(SHLIB_TEXT_START_ADDR): Define.
	(OTHER_GOT_SYMBOLS): Define.
	(OTHER_READWRITE_SECTIONS): Remove initialization of _gp.
	(EXECUTABLE_SYMBOLS): Don't define.
	(DYNAMIC_LINK): Don't define.
	* emulparams/elf32lmip.sh: Same changes as elf32bmip.sh.
	* scripttempl/elfmips.sc: New file.
	* configure.host (mips*-dec-bsd*): Change mips to mips*.
	(mips*-sgi-irix4*): Likewise.
	(mips*-sgi-irix5*): New entry.
	* Makefile.in (eelf32bmip.c): Depend upon elfmips.sc rather than
	elf.sc.
	(eelf32lmip.c): Likewise.