[test] Skip flaky test

NOTRY=true
TBR=clemensh@chromium.org

Bug: v8:7049
Change-Id: I08db96d92a14cb048c2287b6c73b150eeb0fe864
Reviewed-on: https://chromium-review.googlesource.com/758367Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49215}

test/mjsunit/mjsunit.status

@@ -263,7 +263,10 @@
   'wasm/js-api': [SKIP],
 
   # BUG(chromium:773631): Crashes flakily.
-  'wasm/streaming-trap-location': [SKIP]
+  'wasm/streaming-trap-location': [SKIP],
+
+  # BUG(v8:7049).
+  'wasm/interpreter-mixed': [PASS, ['arch == arm64', SKIP]],
 }],  # 'gc_stress == True'
 
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