* Makefile.am: Bfin support.

	* Makefile.am: Bfin support.
	* Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
	* configure: Regenerated.
	* configure.in: Bfin support.
	* configure.tgt: Bfin support.
	* config/bfin-aux.h: New file.
	* config/bfin-defs.h: New file.
	* config/bfin-lex.l: New file.
	* config/bfin-parse.y: New file.
	* config/tc-bfin.c: New file.
	* config/tc-bfin.h: New file.
	* doc/Makefile.am: Recognize c-bfin.texi.
	* doc/Makefile.in: Regenerated.
	* doc/all.texi: Bfin support.
	* doc/as.texinfo: Likewise.
	* doc/c-bfin.texi: Document bfin-specific syntax and
	directives.