Enable BVT tests for Chrome PGO builder.
Enable BVT tests for Chrome PGO builder.

BUG=chromium-os:29829
TEST=cbuildbot_config_unittest.py

Change-Id: I93df210e95946071bf538e7f3120f6ce167bad97
Reviewed-on: https://gerrit.chromium.org/gerrit/44140
Tested-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>
Reviewed-by: Scott Zawalski <d0bc454f32175e2361d26fbdb5930ff6be11acc5@chromium.org>
Commit-Queue: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>

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