[MIPS] Disable multidomain test for MIPS
[MIPS] Disable multidomain test for MIPS

MIPS does not support multiple sandboxes, so the test is marked as broken.

BUG= run_multidomain_test fails on MIPS
TEST= run smoke tests for MIPS

Review URL: https://codereview.chromium.org/38053003

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@12306 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client