Add ci-kubernetes-e2e-gke-ubuntu2-* tests
Add ci-kubernetes-e2e-gke-ubuntu2-* tests

GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid