Automatic merge from submit-queue (batch tested with PRs 50893, 50913, 50963, 50629, 50640)

bump(github.com/google/cadvisor): 27e1acbb4ef0fe1889208b21f8f4a6d0863e02f6

Bump cadvisor dep to include https://github.com/google/cadvisor/commit/556c7b125a822d61c3aba26231959409cc0f11a9.

This is required for supporting huge pages for 1.8

https://github.com/kubernetes/community/pull/837
https://github.com/kubernetes/features/issues/275

@dashpole @derekwaynecarr @eparis @jeremyeder