[klibc] arm64: Add arm64 support

Based on work by Neil Williams (codehelp@debian.org) and Anil Singhar
(anil.singhar@linaro.org), this patch adds arm64 support.

Originally-by: Neil Williams <codehelp@debian.org>
Originally-by: Anil Singhar <anil.singhar@linaro.org>
Signed-off-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
15 files changed