[clang] [clang][ARM][AArch64] Reapply "Define intrinsics guarded by __has_builtin on all platforms (#128222)" (PR #140910)

[Nick Sarnie via cfe-commits]

sarnex wrote:

@rnk To be clear you mean modify Clang's `intrin.h` to include `arm_acle.h` when on supported targets, not the application code including `arm_acle.h` directly right? If so I can make that change. Thanks.

https://github.com/llvm/llvm-project/pull/140910