[clang] [llvm] Reland [clang][AArch64] Add getHostCPUFeatures to query for enabled f… (PR #115467)

[Elvina Yakubova via cfe-commits]

ElvinaYakubova wrote:

Oh yes, you were right, thanks for the explanation. 
I modified the test to run it only in case the host is AArch64.

https://github.com/llvm/llvm-project/pull/115467