* configure.in (mips*el-*-openbsd*):  Don't duplicate default settings.
	(mips*-*-openbsd*):  Let big endian configuration be a fragment.
	* configure:  Regen.
	* config/mips/openbsd.h:  New, OpenBSD little endian target.
	* config/mips/openbsd-be.h:  New, OpenBSD big endian target fragment.
	* config/mips/xm-openbsd.h:  New, OpenBSD host.

From-SVN: r29681