[jdk25] RFR: 8358619: Fix interval recomputation in CPU Time Profiler

[Johannes Bechberger]

Fixes the interval recomputation in JEP 509, tested in the SAP CI.

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Commit messages:
 - Backport c70258ca1cd074392b5bf844bf6f7b80601f45cc

Changes: https://git.openjdk.org/jdk/pull/26313/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26313&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358619
  Stats: 208 lines in 10 files changed: 122 ins; 11 del; 75 mod
  Patch: https://git.openjdk.org/jdk/pull/26313.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26313/head:pull/26313

PR: https://git.openjdk.org/jdk/pull/26313