Exclude AIX tests which deliberately fails on AIX (#5855)

* Exclude ReadOldClass test which deliberately fails on AIX

* serviceability/dcmd/DynLibDcmdTest.java unsupported on AIX

* Forgot the platform and issue link

openjdk/excludes/ProblemList_openjdk8.txt

@@ -12,6 +12,12 @@
 # limitations under the License.
 #############################################################################
 
+# hotspot_jdk
+
+serviceability/dcmd/DynLibDcmdTest.java https://github.com/adoptium/aqa-tests/issues/5854 aix-all
+
+############################################################################
+
 # hotspot_all
 
 # compiler/7184394/TestAESMain.java https://github.com/adoptium/infrastructure/issues/2893
@@ -451,3 +457,4 @@ jdk/jfr/event/compiler/TestCompilerInlining.java https://github.com/adoptium/aqa
 # langtools_all
 
 tools/javac/defaultMethods/Assertions.java https://bugs.openjdk.org/browse/JDK-8047675 generic-all
+tools/javah/ReadOldClass.sh https://github.com/adoptium/aqa-tests/issues/5854 aix-all