[clang] [llvm] [ARM] Armv8-R does not require fp64 or neon. (PR #88287)

[Peter Smith via cfe-commits]

smithp35 wrote:

Apologies I read the comments, rather than go through the code. It looks the code has already made the v8-r imply a generic CPU.

So it looks like the code is doing what my proposal states so no objections from me and apologies for the noise.

https://github.com/llvm/llvm-project/pull/88287