Improve patch to ValueLayouts for AIX

[keithc-ca]

This is a back-port of ibmruntimes/openj9-openjdk-jdk#815.

[JasonFengJ9]

jenkins test sanity amac jdk21

[JasonFengJ9]

16:50:10 Error: schema validation failed for /Users/jenkins/workspace/Test_openjdk21_j9_sanity.functional_aarch64_mac_Personal/aqa-tests/TKG/../functional/MBCS_Tests/i18n/playlist.xml with exception:
16:50:10 Line: 43
16:50:10 Column: 13
16:50:10 Message: cvc-complex-type.2.4.a: Invalid content was found starting with element 'disables'. One of '{variations, capabilities, rerun, platformRequirements, platformRequirementsList, platform, aot, features, levels, groups, types, impls, vendors, versions}' is expected.

Test issue (fixed).
Relaunched the test - https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.functional_aarch64_mac_Personal/75/console - passed