Validator_ragel: don't use python interface to validator under asan (presumably fix buildbot failure).
Validator_ragel: don't use python interface to validator under asan (presumably fix buildbot failure).

Asan does not instrument shared libraries (only executables), so python will be unable to load it anyway.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3167
TEST= asan buildbot :(

Review URL: https://codereview.chromium.org/12209013

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@10709 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