[clang][ARM] Include arm_acle.h in intrin.h on supported platforms (#144172)

Right now when using ARM intrinsics without including `arm_acle.h`, we
throw a warning saying to include it or provide a declaration for the
function.
MSVC doesn't have any ARM-intrinsic specific header, so include Clang's
ARM intrinsic header (`arm_acle.h`) in `intrin.h` so we don't get a
warning that tells the user to include a header that doesn't exist.
Ideally we could change the header based on the platform, but we don't
have the infra for that at the moment.

See https://github.com/llvm/llvm-project/pull/140910 for more info.

Signed-off-by: Sarnie, Nick <nick.sarnie@intel.com>
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tree: 076925a77335e60f32e1e38958d662d92445ad1d
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  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
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  11. libc/
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  19. llvm/
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  25. polly/
  26. runtimes/
  27. third-party/
  28. utils/
  29. .clang-format
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  31. .clang-tidy
  32. .git-blame-ignore-revs
  33. .gitattributes
  34. .gitignore
  35. .mailmap
  36. CODE_OF_CONDUCT.md
  37. CONTRIBUTING.md
  38. LICENSE.TXT
  39. pyproject.toml
  40. README.md
  41. SECURITY.md
README.md

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