* ARCompact.cpu, arc.cpu, arc.opc: Copied files from:
        Customer-Projects/synopsys/arc_gnu/branches/arc_gnu_4.8/srcw-20120503/cpu.
~
        * arc-opc.c, arc-dis.c, arc-dis.h: Rename to:
        * arc-opc-old.c, arc-dis-old.c, arc-dis-old.h.
        * arc-dis-old.c, arcompact-dis.c: Reflect header file name change.
        * arc-opc-cgen.c, arc-dis-cgen.c, arc-dis-cgen.h: Delete.
        * arc-opc.c, arc-dis.c, arc-dis.h: Autogenerate with CGEN.
        * Makefile.am (HFILES): Add arc-desch and arc-opc.h.
        (TARGET_LIBOPCODES_CFILES): Add arc-asm.c, arc-desc.c, arc-dis-old.c,
        arc-ibld.c, arc-opinst.c.
        (CLEANFILES): Add stamp-arc.
        (CGEN_CPUS): Add arc.
        (ARC_DEPS): New rule.
        ($(srcdir)/arc-desc.h $(srcdir)/arc-desc.c $(srcdir)/arc-opc.h
         $(srcdir)/arc-opc.c $(srcdir)/arc-ibld.c $(srcdir)/arc-opinst.c
         $(srcdir)/arc-asm.c $(srcdir)/arc-dis.c): Likewise.
         (stamp-arc): Likewise.
         * configure.in (bfd_arc_arch): Update file list.
         * Makefile.in, configure: Regenerate.