Fix the disabled value for vm_tests.
Fix the disabled value for vm_tests.

BUG=None
TEST=None

Change-Id: Ic52864b069b63ddf65b2103bf96ac31fc4c62b24
Reviewed-on: https://gerrit.chromium.org/gerrit/11889
Tested-by: Peter Mayo <3d31fdaf44dc55bb1b4f50b19df9bc879177d37a@chromium.org>
Reviewed-by: Ryan Cui <5ce1592d53754a87a44fc2eb7b63d5f77cf50fdb@chromium.org>
Commit-Ready: Peter Mayo <3d31fdaf44dc55bb1b4f50b19df9bc879177d37a@chromium.org>

zhang0137/chromite,chadversary/chromiumos.chromite,coreos/chromite,zhang0137/chromite,chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,zhang0137/chromite