[test] Skip flaky test on Android

Failed once here:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Android%20Arm64%20-%20N5X/852

Test allocates a lot of memory. The output suggests that OS killed it.

NOTRY=true
TBR=rmcilroy@chromium.org

Change-Id: Id177d381133a2671a5c4e3f0cac2cc3ea6cd6ee7
Reviewed-on: https://chromium-review.googlesource.com/1233759Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56036}

test/mjsunit/mjsunit.status

@@ -646,6 +646,8 @@
   'regress/regress-748069': [FAIL],
   'regress/regress-752764': [FAIL],
   'regress/regress-779407': [FAIL],
+  # Flaky OOM:
+  'regress/regress-852258': [SKIP],
 }],  # 'system == android'
 
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