Description of problem:
when setting parameters in containerRuntimeConfig, it will show incorrect information on its description.For example,when set logLevel, it will also show logSizeMax and overlaySize.And when set overlaySize, it will show logSizeMax.

Version-Release number of selected component (if applicable):
4.8.0-0.nightly-2021-03-21-224928

How reproducible:
always

Steps to Reproduce:
1.$ oc label mcp worker custom-loglevel=warn

2.$ oc create -f containerRuntimeConfig_log_level.yaml
yaml file:
apiVersion: machineconfiguration.openshift.io/v1
kind: ContainerRuntimeConfig
metadata:
 name: set-loglevel
spec:
 machineConfigPoolSelector:
   matchLabels:
     custom-loglevel: warn
 containerRuntimeConfig:
   logLevel: warn


3.$ oc get ctrcfg set-loglevel -o yaml
...
spec:
  containerRuntimeConfig:
    logLevel: warn
    logSizeMax: "0"  // the next 2 lines are incorrect
    overlaySize: "0"
  machineConfigPoolSelector:
    matchLabels:
      custom-loglevel: warn
status:
  conditions:
  - lastTransitionTime: "2021-03-22T08:54:55Z"
    message: Success
    status: "True"
    type: Success
  observedGeneration: 2

Actual results:
2.create succeed
3.show incorrect information logSizeMax: "0" and overlaySize: "0", yet when checking node, the two parameters really don't be reset.

sh-4.4# crio config | grep -i log_size_max
log_size_max = -1 


Expected results:
3.it should not show incorrect information logSizeMax: "0" and overlaySize: "0"

Additional info:
Also when set "overlaySize: 10G", it will show logSizeMax: "0"
spec:
  containerRuntimeConfig:
    logSizeMax: "0"
    overlaySize: 10G
  machineConfigPoolSelector:
    matchLabels:
      custom-crio-overlay: overlay-size
status:
  conditions:
  - lastTransitionTime: "2021-03-22T08:29:29Z"
    message: Success
    status: "True"
    type: Success
  observedGeneration: 2