* elf64-ppc.c: Convert to C90 function definitions, remove unnecessary

	* elf64-ppc.c: Convert to C90 function definitions, remove unnecessary
	prototypes and casts.  Replace PTR with void *.  Format copyright.
	Mention ABI links.
	(struct ppc_link_hash_table): Rename sgot, srelgot, splt, srelplt,
	sdynbss, srelbss, sglink, sbrlt and srelbrlt to got, relgot .. relbrlt.
	(ppc_type_of_stub): Make r_type an enum.
	(ppc64_elf_size_stubs): Likewise.
	* elf64-ppc.h: Remove PARAMS macro.