[jdk25] RFR: 8359242: JFR: Missing help text for method trace and timing

[Erik Gahlin]

8359242: JFR: Missing help text for method trace and timing

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Commit messages:
 - Backport e57a214e2a1059109dd028369d518298cfa5d5b4

Changes: https://git.openjdk.org/jdk/pull/25899/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25899&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8359242
  Stats: 50 lines in 7 files changed: 35 ins; 4 del; 11 mod
  Patch: https://git.openjdk.org/jdk/pull/25899.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25899/head:pull/25899

PR: https://git.openjdk.org/jdk/pull/25899