[jdk24] RFR: 8347596: Update HSS/LMS public key encoding

[Weijun Wang]

8347596: Update HSS/LMS public key encoding

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Commit messages:
 - Backport 0ee6ba9c4c998baeb733363d00db138864f49406

Changes: https://git.openjdk.org/jdk/pull/23119/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23119&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347596
  Stats: 42 lines in 3 files changed: 19 ins; 10 del; 13 mod
  Patch: https://git.openjdk.org/jdk/pull/23119.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23119/head:pull/23119

PR: https://git.openjdk.org/jdk/pull/23119