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

[Daniel D. Daugherty]

On Thu, 11 Aug 2022 20:15:14 GMT, Daniel D. Daugherty <dcubed 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.

The 4 M&M tests passed 16 times in Mach5 Tier5 (4 tests x 4 configs).

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