Use __glibc_reserved instead __unused.
Fix typo in _dl_tlsdesc_resolve_hold.
Remove duplicate ifunc benchtests.
Add changelog.
Remove duplicate ifunc tests.
PowerPC: Fix __fe_nomask_env missing symbol

This patch fix the missing symbol __fe_nomask_env from commit
41e8926aa4b7f17bc95984737ee82a254ad0911c for GLIBC_2.1.
NEWS: Mention __unused and __block removal.
NEWS: Only public headers have __unused/__block changed.
Avoid "left shift count >= width of type" warnings in soft-fp code.
aarch64: Enable ifunc support.

Add support for handling the R_AARCH64_IRELATIVE relocation and
STT_GNU_IFUNC symbols to the aarch64 port.

ports/ChangeLog.aarch64:

2013-11-26  Will Newton  <will.newton@linaro.org>

	* sysdeps/aarch64/dl-irel.h: Include ldsodefs.h.
	(ELF_MACHINE_IRELA): Define.  (elf_ifunc_invoke): Pass
	hwcap to ifunc resolver function.  (elf_irela): New function.
	* sysdeps/aarch64/dl-machine.h: Include dl-irel.h.
	(elf_machine_rela) Handle STT_GNU_IFUNC symbols and
	R_AARCH64_IRELATIVE relocations.  (elf_machine_lazy_rel):
	Handle R_AARCH64_IRELATIVE relocations.
Also remove benchtests/bench-strsep-ifunc.c