Update git submodules

* Update docs/submodules/infra from branch 'master'
  - Installing gsutil from googles website gives you the full sdk

    We cannot authroize the full skd it has permission to start and stop vms

    Change-Id: I22799074b0756ad93f8117df3f019545be2ee64e
    Signed-off-by: agardner <agardner@linuxfoundation.org>

diff --git a/docs/submodules/infra b/docs/submodules/infra
index b127369..70abc78 160000 (submodule)
--- a/docs/submodules/infra
+++ b/docs/submodules/infra
@@ -1 +1 @@
-Subproject commit b127369752dd4f6a1b038c14c45f90df54a505fd
+Subproject commit 70abc782669332240354aad59d03c0fa7a7e2c51