[Clang][AArch64] Add ACLE macros to support Armv9.6 (#176755)
This patch add the macros for Armv9.6 according to the ACLE[1]
[1]https://github.com/ARM-software/acle/blob/main/main/acle.md
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
(cherry picked from commit c97d0bc17a7677f4022a345fc4adae09198e3952)