Reenable wasm regress-827806 test

This test was disabled because of flakes. This should be fixed now.

R=ahaas@chromium.org

Bug: v8:7872
Change-Id: I288f3776ca7f946caf20a66f1cdf5d37bd6ba245
Reviewed-on: https://chromium-review.googlesource.com/1224376Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55900}

test/mjsunit/mjsunit.status

@@ -55,8 +55,6 @@
   # Issue 5495: enable the test when the constant field tracking in enabled.
   'const-field-tracking': [SKIP],
 
-  # Issue 7872: flaky OOM
-  'regress/wasm/regress-827806': [SKIP],
   ##############################################################################
   # Too slow in debug mode with --stress-opt mode.
   'regress/regress-create-exception': [PASS, ['mode == debug', SKIP]],