* emulparams/arcelf.sh, emulparams/arcelf_prof.sh, emulparams/arclinux.sh,
        emulparams/arclinux.sh: Set OUTPUT_FORMAT based on toolchain endianness.
        * configure.tgt: Combined little and big endian target emulations.
        * Makefile.am (ALL_EMULATION_SOURCES): Removed big endian specific sources.
        * Makefile.in: Regenerated.