Automatic merge from submit-queue (batch tested with PRs 39661, 39740, 39801, 39468, 39743)

add --controllers to controller manager

Adds a `--controllers` flag to the `kube-controller-manager` to indicate which controllers are enabled and disabled.  From the help:

```
      --controllers stringSlice                                           A list of controllers to enable.  '*' enables all on-by-default controllers, 'foo' enables the controller named 'foo', '-foo' disables the controller named 'foo'.
All controllers: certificatesigningrequests, cronjob, daemonset, deployment, disruption, endpoint, garbagecollector, horizontalpodautoscaling, job, namespace, podgc, replicaset, replicationcontroller, resourcequota, serviceaccount, statefuleset
```