PR26667, Add powerpc64le-*-freebsd* support

	PR 26667
bfd/
	* config.bfd: Add powerpc64le-*-freebsd*.
	* configure.ac: Add powerpc_elf64_fbsd_le_vec.
	* elf64-ppc.c (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME): Define for
	freebsd.
	* targets.c (powerpc_elf64_fbsd_le_vec): Declare.
	(_bfd_target_vector): Add it.
	* configure: Regenerate.
ld/
	* Makefile.am (ALL_64_EMULATION_SOURCES): Add eelf64lppc_fbsd.c.
	Include $(DEPDIR)/eelf64lppc_fbsd.Pc.
	* configure.tgt: Add powerpc64le-*-freebsd*.
	* emulparams/elf64lppc_fbsd.sh: New file.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.