Update OpenJ9 Valhalla excludes after extensions merge (#6806)

Updates after ibmruntimes/openj9-openjdk-jdk.valuetypes#23

- Add a new section for tests failing due to use of hotspot WhiteBox api
that is not compatible with OpenJ9
- Exclude new variations of tests that were already failing
- Exclude new failing tests including
compiler/valhalla/inlinetypes/TestArrayCopy.java
compiler/valhalla/inlinetypes/TestAcmpEdgeCases.java
runtime/valhalla/inlinetypes/AcmpTest.java
serviceability/jvmti/valhalla/HeapwalkDupClasses/HeapwalkDupClasses.java

Signed-off-by: Theresa Mammarella <[email protected]>

Author: theresa-m