* mips.sc-sh: New file. Ultrix, and hopefully other MIPS ECOFF
targets, linker script.
* mipslit.sh: New file. Little endian MIPS emulation.
* config/mips-lit.mt: New file. Use mipslit emulation.
* configure.in (mips-dec-ultrix*): Use target mips-lit.
* Makefile.in (ALL_EMULATIONS): Added em_mipslit.o.
(em_mipslit.c): New target. Uses mipslit.sh.