bfd/

bfd/
	* elf64-ppc.c (create_linkage_sections): Use section ".branch_lt"
	for branch lookup table.
ld/
	* emulparams/elf64ppc.sh (OTHER_READWRITE_SECTIONS): Add ".branch_lt".
	* emultempl/ppc64elf.em (ppc_add_stub_section): Create without
	SEC_RELOC flag set.
ld/testsuite/
	* ld-powerpc/relbrlt.d: Update.
	* ld-powerpc/tlsexe.r: Update.
	* ld-powerpc/tlsexetoc.r: Update.
	* ld-powerpc/tlsso.r: Update.
	* ld-powerpc/tlstocso.r: Update.