[PATCH committed][AArch64] Fix out of bound array access regression

[Szabolcs Nagy]

Partially revert ea01a4da219011f4a4db97eef3c5bfc2f6e8fc6b
"aarch64: Add hwcap string routines" because _dl_procinfo cannot
be future proof and avoid oob access in _dl_hwcap_string.

2017-07-18  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h (_dl_procinfo): Revert.
	(_dl_hwcap_string): Check range.
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