[test] Skip flaky test on native arm hardware

NOTRY=true
TBR=ulan@chromium.org

Bug: v8:7678
Change-Id: Id0b582539b0c9495ae7cd51a2324d096ade66821
Reviewed-on: https://chromium-review.googlesource.com/1021576
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52715}

test/mjsunit/mjsunit.status

@@ -755,6 +755,9 @@
   'ignition/regress-599001-verifyheap': [SKIP],
   'unicode-test': [SKIP],
 
+  # Flaky crash on Odroid devices: https://crbug.com/v8/7678
+  'regress/regress-336820': [PASS, ['arch == arm and not simulator_run', SKIP]],
+
   # Slow tests.
   'regress/regress-2185-2': [SKIP],
 }],  # variant == stress