[jdk22u] RFR: 8329958: Windows x86 build fails: downcallLinker.cpp(36) redefinition

[David Holmes]

Trivial backport to fix Windows 32-bit build issue.

Thanks.

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Commit messages:
 - Backport 86eb5d9f3be30ff9df1318f18ab73c7129c978f6

Changes: https://git.openjdk.org/jdk22u/pull/224/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk22u&pr=224&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329958
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk22u/pull/224.diff
  Fetch: git fetch https://git.openjdk.org/jdk22u.git pull/224/head:pull/224

PR: https://git.openjdk.org/jdk22u/pull/224