[clang] [clang][ARM][AArch64] Don't require arm_acle header for universally defined intrinsics (PR #136742)

[Martin Storsjö via cfe-commits]

mstorsjo wrote:

> FYI @mstorsjo I reverted the breaking change [here](https://github.com/llvm/llvm-project/commit/b60ee399787cb2a5f50d21932db3492cc4ff0d34), and I'll reapply it fixing the regression when I have a fix for it, sorry for the trouble.

No problem, thanks for reverting to a better state while working out the proper solution!

https://github.com/llvm/llvm-project/pull/136742