Thread suspension: Enable stress test for context switches on ARM
Thread suspension: Enable stress test for context switches on ARM

This works now that NaClGetRegistersForContextSwitch() has been
extended to handle ARM.

BUG=https://code.google.com/p/nativeclient/issues/detail?id=2830
TEST=run_thread_suspension_test

Review URL: https://codereview.chromium.org/22723002

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11973 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client