jdk26 OpenJDK foreign/stackwalk no whitebox natives

[pshipton]

https://openj9-jenkins.osuosl.org/job/Test_openjdknext_j9_sanity.openjdk_aarch64_mac_Personal_testList_1/20
jdk_foreign
java/foreign/stackwalk/TestAsyncStackWalk.java#default_gc
java/foreign/stackwalk/TestStackWalk.java#default_gc
java/foreign/stackwalk/TestReentrantUpcalls.java
java/foreign/upcalldeopt/TestUpcallDeopt.java

14:01:32  java.lang.UnsatisfiedLinkError: jdk/test/whitebox/WhiteBox.registerNatives()V
14:01:32  	at jdk.test.whitebox.WhiteBox.<clinit>(WhiteBox.java:59)

[pshipton]

Already excluded via #13993, #17673, #13157
there were no jdk26 excludes yet.