From Jie Zhang <jie.zhang@analog.com>

	From Jie Zhang <jie.zhang@analog.com>
	* elf32-bfin.c (struct bfinfdpic_relocs_info): Make got17m4,
	gothilo, fd, fdgot17m4, fdgothilo, fdgoff17m4, fdgoffhilo,
	gotoff, call and sym not bitfields.
	(bfinfdpic_gc_sweep_hook): New function; update the relocation
	information for the relocations of the section being removed.
	(bfinfdpic_check_relocs): Accumulate the number of relocations
	which set got17m4, gothilo, fd, fdgot17m4, fdgothilo, fdgoff17m4,
	fdgoffhilo, gotoff, call and sym fields.
	(elf_backend_gc_sweep_hook): Redefine for FD-PIC.