The globals tests for simd are failing on mips big endian. Will re-enable
after fixing.

R=clemensh@chromium.org
BUG=v8:6020

Change-Id: I8a8a17c4e947b69ccc2eb6bbe79c308b1129d1af
Reviewed-on: https://chromium-review.googlesource.com/1089814
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53595}