RFR: 8349943: [JMH] Use jvmArgs consistently

[Nicole Xu]

On Thu, 13 Feb 2025 08:35:47 GMT, Nicole Xu <duke at openjdk.org> wrote:

> As is suggested in [JDK-8342958](https://bugs.openjdk.org/browse/JDK-8342958), `jvmArgs` should be used consistently in microbenchmarks to 'align with the intuition that when you use jvmArgsAppend/-Prepend intent is to add to a set of existing flags, while if you supply jvmArgs intent is "run with these and nothing else"'.
> 
> All the previous flags were aligned in https://github.com/openjdk/jdk/pull/21683, while some recent tests use inconsistent `jvmArgs` again. We update them to keep the consistency.

Hi @cl4es, here is a fellow-up fix of `jvmArgs` flags. Could you please review the changes? Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/23609#issuecomment-2670146567