Enable Skynet on AIX

Depends on
- eclipse-openj9/openj9#18649
- eclipse-openj9/openj9#18657
- eclipse-openj9/openj9#18658

Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>

Author: babsingh

openjdk/excludes/ProblemList_openjdk21-openj9.txt

@@ -130,7 +130,6 @@ jdk/internal/vm/Continuation/LiveFramesDriver.java https://github.com/eclipse-op
 jdk/internal/vm/Continuation/Scoped.java https://github.com/eclipse-openj9/openj9/issues/15163 generic-all
 jdk/modules/incubator/ImageModules.java https://github.com/adoptium/aqa-tests/issues/1267 macosx-all
 jni/nullCaller/NullCallerTest.java https://github.com/eclipse-openj9/openj9/issues/15370 linux-ppc64le,macosx-all
-java/lang/Thread/virtual/stress/Skynet.java#default https://github.com/eclipse-openj9/openj9/issues/16728 linux-ppc64le,aix-all
 
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openjdk/excludes/ProblemList_openjdk22-openj9.txt

@@ -131,7 +131,6 @@ jdk/internal/vm/Continuation/Scoped.java https://github.com/eclipse-openj9/openj
 jdk/modules/incubator/ImageModules.java https://github.com/adoptium/aqa-tests/issues/1267 macosx-all
 jni/nullCaller/NullCallerTest.java https://github.com/eclipse-openj9/openj9/issues/15370 linux-ppc64le,macosx-all
 java/lang/Thread/jni/AttachCurrentThread/AttachTest.java#id1 https://github.com/eclipse-openj9/openj9/issues/17399 generic-all
-java/lang/Thread/virtual/stress/Skynet.java#default https://github.com/eclipse-openj9/openj9/issues/16728 linux-ppc64le,aix-all
 
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