[jdk22u] RFR: 8327391: Add SipHash attribution file

[Jesper Wilhelmsson]

Clean backport

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Commit messages:
 - Backport fcf48ab3d36a7f8eed84e81c3e2445adcbc95374

Changes: https://git.openjdk.org/jdk22u/pull/85/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk22u&pr=85&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327391
  Stats: 150 lines in 1 file changed: 150 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk22u/pull/85.diff
  Fetch: git fetch https://git.openjdk.org/jdk22u.git pull/85/head:pull/85

PR: https://git.openjdk.org/jdk22u/pull/85