RFR: 8353217: Build libsleef on macos-aarch64 [v3]

[Vladimir Ivanov]

> Build and use SLEEF library as a backend implementation for Vector API trigonometric functions on macosx-aarch64 platform.
> 
> It improves raw throughput and eliminates GC overhead of non-intrinsified Vector API operation.
> 
> PR includes build changes and libsleef sources relocation from `src/jdk.incubator.vector/linux/native/` to `src/jdk.incubator.vector/share/native/`.
> 
> Once libsleef library is present, existing code in `stubGenerator_aarch64.cpp` successfully links at JVM startup. 
> 
> Testing: hs-tier1 - hs-tier4, microbenchmarks

Vladimir Ivanov has updated the pull request incrementally with one additional commit since the last revision:

  Adjust README.md

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24306/files
  - new: https://git.openjdk.org/jdk/pull/24306/files/90312182..8ac5d0bb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24306&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24306&range=01-02

  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/24306.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24306/head:pull/24306

PR: https://git.openjdk.org/jdk/pull/24306