[jdk24] RFR: 8347302: Mark test tools/jimage/JImageToolTest.java as flagless

[SendaoYan]

Hi all,

This pull request contains a backport of commit [e7e8f60c](https://github.com/openjdk/jdk/commit/e7e8f60c9bedd5622525cc4339300b438eedc9fd) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository. Test test/jdk/tools/jimage/JImageToolTest.java ignore vm flags and should be marked as flagless.

The commit being backported was authored by Leonid Mesnik on 10 Jan 2025 and was reviewed by Alan Bateman and Aleksey Shipilev.

Thanks!

-------------

Commit messages:
 - Backport e7e8f60c9bedd5622525cc4339300b438eedc9fd

Changes: https://git.openjdk.org/jdk/pull/23058/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23058&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347302
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/23058.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23058/head:pull/23058

PR: https://git.openjdk.org/jdk/pull/23058