RFR: 8292262: adjust timeouts in several M&M tests

[Daniel D. Daugherty]

On Thu, 11 Aug 2022 21:01:20 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> Trivial fixes to adjust timeouts in several M&M tests.
>> 
>> This fix is being tested in my jdk-20+10 stress testing.
>
> Marked as reviewed by cjplummer (Reviewer).

@plummercj - Thanks for the review. Do you agree that these are trivial changes?

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PR: https://git.openjdk.org/jdk/pull/9847