Description of problem:
CI job test_pull_request_origin_extended_conformance_install-release-3.11 is failing continually.

https://prow.ci.openshift.org/job-history/origin-ci-test/pr-logs/directory/test_pull_request_origin_extended_conformance_install-release-3.11

Example:
https://prow.ci.openshift.org/view/gs/origin-ci-test/pr-logs/pull/25578/test_pull_request_origin_extended_conformance_install-release-3.11/2470

During installation at the point where the node service is restarted, the node does not return to a Ready status.  The kubelet is failing to start with the error:

"message": "runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized", 
"reason": "KubeletNotReady", 
"status": "False", 
"type": "Ready"

Node logs show:
Nov 19 15:04:14 ip-172-18-7-176.ec2.internal origin-node[15185]: W1119 15:04:14.130564   15185 cni.go:172] Unable to update cni config: No networks found in /etc/cni/net.d
Nov 19 15:04:14 ip-172-18-7-176.ec2.internal origin-node[15185]: I1119 15:04:14.130782   15185 kubelet.go:2098] Container runtime status: Runtime Conditions: RuntimeReady=true reason: message:, NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized
Nov 19 15:04:14 ip-172-18-7-176.ec2.internal origin-node[15185]: E1119 15:04:14.130823   15185 kubelet.go:2101] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized

NOTE:
The base AMI was recently updated when it was discovered that an old version of docker was installed.  There may be other package changes that occurred.