This vendor change was purely for the changes in docker to allow for
setting the Masked and Read-only paths.

See: moby/moby#36644

But because of the docker dep update it also needed cadvisor to be
updated and winterm due to changes in pkg/tlsconfig in docker

See: google/cadvisor#1967
Signed-off-by: Jess Frazelle <acidburn@microsoft.com>