bfin bfd.h tidy
    
    bfd/
    	* bfd-in.h: Move bfin function declaration..
    	* elf32-bfin.h: ..to here, new file.
    	* elf32-bfin.c: Include elf32-bfin.h.
    	* bfd-in2.h: Regenerate.
    ld/
    	* emultempl/bfin.em: Include elf32-bfin.h.