SharedClassesWorkloadTest_Softmx_Increase_JitAot test fails on ppc64le linux & s390x linux due to not enough AOT being generated

[Mesbah-Alam]

Overview
SharedClassesWorkloadTest_Softmx_Increase_JitAot test fails on openjdk8_j9_systemtest_ppc64le_linux due to not enough AOT being generated

The test fails in step 10 below:

1  setUp    mkdir             Create the cache directory
2  setUp    java              Destroy Persistent Shared Classes Caches
3  setUp    java              Destroy Non-Persistent Shared Classes Caches
4  execute  Run java          Run Jvm1 workload process
5  execute  Run java          Run Jvm2 workload process
7  execute  java              List all caches
8  execute  java              Print Shared Classes Cache Stats
9  execute  Run java          Combine stderr files of jvm1 and jvm2
10  execute  count            Make sure the space for AOT data in shared cache is full

Build Links:
https://ci.adoptopenjdk.net/view/System%20tests/job/openjdk8_j9_systemtest_ppc64le_linux/34/

Note:
These tests are hard to write. They contain potential for inconsistent behavior like this. They may need to be updated occasionally based on changes made to the implementation of JIT.

For this issue, we need to update the test so that enough AOT gets generated on ppc64le Linux.

[Mesbah-Alam]

Failing test excluded from ppcle linux: adoptium/aqa-tests#285

[Mesbah-Alam]

Also fails on s390x linux: https://ci.adoptopenjdk.net/view/System%20tests/job/openjdk9_j9_systemtest_s390x_linux/lastSuccessfulBuild/artifact/openjdk-tests/TestConfig/test_output_15217181328529/TestTargetResult.tap/*view*/

The test will be excluded from s390x too.