Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. update GCE plugin for block support update GCE plugin for block volume support cc @gnufied @mtanino @jsafrane ```release-note GCE PD volume plugin got block volume support ```