* elf32-ppc.c (ppc_elf_check_relocs): Always set up sections

	* elf32-ppc.c (ppc_elf_check_relocs): Always set up sections
	used by indirect function support.  Count dynamic relocs for
	ifunc syms.
	(ppc_elf_adjust_dynamic_symbol): Tweak for ifunc.
	(allocate_dynrelocs): Allocate all non-dynamic ifunc plt entries
	in iplt and their relocs in reliplt.  Don't make ifunc syms
	dynamic.  Allocate got entry relocs for non-dynamic ifunc in
	reliplt.  Handle other dynamic relocs for ifunc.
	(ppc_elf_size_dynamic_sections): Alloc dyn relocs for static
	ifunc in reliplt, likewise relocs for got against local ifunc.
	Typo fix on reliplt size adjust.
	(ppc_elf_relocate_section): Don't use plt scheme of allocating
	relocs 1-1 with entries for iplt, instead just add using
	reloc_count.  Write got relocs and dyn relocs for ifunc to reliplt.
	Error on invalid ifunc dyn relocs.
	(ppc_elf_finish_dynamic_symbol): Adjust for non-dynamic ifunc plt
	in iplt/reliplt.
	* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_JMP_IREL,
	R_PPC64_REL16, R_PPC64_REL16_LO, R_PPC64_REL16_HI, R_PPC64_REL16_HA.
	(ppc64_elf_reloc_type_lookup): Handle new relocs.
	(ppc64_elf_check_relocs): Likewise.  Count dyn relocs for ifunc.
	(allocate_dynrelocs): As for elf32-ppc.c above.
	(ppc64_elf_size_dynamic_sections): Likewise.
	(ppc_build_one_stub): Put non-dynamic ifunc plt call stubs in iplt,
	and their relocs in reliplt.  Use R_PPC64_JMP_IREL.
	(ppc_size_one_stub): Similarly.
	(ppc64_elf_relocate_section): As for elf32-ppc.c above.  Handle new
	relocs too.
	(ppc64_elf_finish_dynamic_symbol): As for elf32-ppc.c above.