Integrated: 8252522: nsk/share/test/StressOptions should multiple stressTime by jtreg's timeout-factor

[Igor Ignatyev]

pre-skara ear RFR threads: [Aug](https://mail.openjdk.java.net/pipermail/hotspot-dev/2020-August/042790.html),
[Sep](https://mail.openjdk.java.net/pipermail/hotspot-dev/2020-September/042877.html)

> Hi all,
> 
> could you please review this small patch which updates StressOptions to adjust allocated time according to
> TIMEOUT_FACTOR?
> from [JBS](https://bugs.openjdk.java.net/browse/JDK-8252522):
> > nsk/share/test/StressOptions and Stresser aren't aware of jtreg's timeout-factor and hence don't provide enough stress
> > time for testing in slow/stress configurations, e.g. Xcomp.

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

Commit messages:
 - 8252522: nsk/share/test/StressOptions should multiple stressTime by jtreg's timeout-factor

Changes: https://git.openjdk.java.net/jdk/pull/32/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=32&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8252522
  Stats: 31 lines in 1 file changed: 2 ins; 12 del; 17 mod
  Patch: https://git.openjdk.java.net/jdk/pull/32.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/32/head:pull/32

PR: https://git.openjdk.java.net/jdk/pull/32