[jdk8u-dev] RFR: 8159156: [TESTBUG] ReserveMemory test is not useful on Aix.

[Ilarion Nakonechnyy]

Backport of JDK-8159156 [TESTBUG] ReserveMemory test is not useful on Aix.
Applied cleanly.

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

Commit messages:
 - Backport 8bb3799029d34e7f5bbc3d9e5bc6da7068360bc7

Changes: https://git.openjdk.org/jdk8u-dev/pull/358/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=358&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8159156
  Stats: 12 lines in 1 file changed: 2 ins; 8 del; 2 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/358.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/358/head:pull/358

PR: https://git.openjdk.org/jdk8u-dev/pull/358