[jdk17u-dev] RFR: 8287735: Provide separate event category for dll operations

[Matthias Baesken]

8287735: Provide separate event category for dll operations

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Commit messages:
 - Backport 230726ea58041506157646b6efad0b5c4a012559

Changes: https://git.openjdk.org/jdk17u-dev/pull/529/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=529&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8287735
  Stats: 27 lines in 6 files changed: 16 ins; 0 del; 11 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/529.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/529/head:pull/529

PR: https://git.openjdk.org/jdk17u-dev/pull/529