* configure.tgt (mips*-sgi-irix[56]*): Use elf32bsmip rather than

	* configure.tgt (mips*-sgi-irix[56]*): Use elf32bsmip rather than
	elf32bmip.
	(mips*el-*-linux*): Change elf32lmip to elf32lsmip and elf32bmip
	to elf32bsmip.
	(mips*-*-linux*): Likewise.
	* emulparams/elf32bsmip.sh: New file; just like elf32bmip.sh, but
	setting ENTRY to __start.
	* emulparams/elf32lsmip.sh: New file; just like elf32lmip.sh, but
	setting ENTRY to __start.
	* scripttempl/elf.sc: Always set ENTRY to _start if it was not
	already set.