AIX: skip some of the LogTest tests

A few of LogTests have been crashing intermittently
after they were moved to unittests in this CL:
https://crrev.com/c/3616424

Will re-enable once issue is investigated.

Change-Id: I53435596274c935c028a625b610c54eadda9d1de
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3647092Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80551}

test/unittests/unittests.status

@@ -49,6 +49,11 @@
 ['system == aix', {
   # PASE does not support detecting physical memory size
   'SysInfoTest.AmountOfPhysicalMemory': [SKIP],
+  # intermittent crashes when tests are ran with test-runner.
+  'LogTest.LogAccessorCallbacks': [SKIP],
+  'LogTest.BuiltinsNotLoggedAsLazyCompile': [SKIP],
+  'LogTest.LogCallbacks': [SKIP],
+  'LogTest.Issue539892': [SKIP],
 }],  # system == aix
 
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