Update auto generated docs for kubelet

docs/admin/kubelet.md

@@ -113,6 +113,7 @@ kubelet
       --minimum-container-ttl-duration=1m0s: Minimum age for a finished container before it is garbage collected.  Examples: '300ms', '10s' or '2h45m'
       --network-plugin="": <Warning: Alpha feature> The name of the network plugin to be invoked for various events in kubelet/pod lifecycle
       --network-plugin-dir="/usr/libexec/kubernetes/kubelet-plugins/net/exec/": <Warning: Alpha feature> The full path of the directory in which to search for network plugins
+      --node-ip=<nil>: IP address of the node. If set, kubelet will use this IP address for the node
       --node-label=[]: add labels when registering the node in the cluster, the flag can be used multiple times (key=value)
       --node-labels-file="": the path to a yaml or json file containing a series of key pair labels to apply on node registration
       --node-status-update-frequency=10s: Specifies how often kubelet posts node status to master. Note: be cautious when changing the constant, it must work with nodeMonitorGracePeriod in nodecontroller. Default: 10s

hack/verify-flags/known-flags.txt

@@ -221,6 +221,7 @@ namespace-sync-period
 network-plugin
 network-plugin-dir
 node-instance-group
+node-ip
 node-monitor-grace-period
 node-monitor-period
 node-label