Fix runlevels

[mcoops]

Add in the correct SCC for each SA to allow the pods to be accepted by admission.

machine-config-controller - anyuid (asks for runAsUser: 65534)
machine-config-daemon - privileged (asks for hostNetwork, privileged: true)
machine-config-server - hostnetwork (asks for hostNetwork: true)

Otherwise we get:

LAST SEEN TYPE REASON OBJECT MESSAGE
12s Warning FailedCreate daemonset/machine-config-daemon Error creating: pods "machine-config-daemon-" is forbidden: unable to validate against any security context constraint: [provider "anyuid": Forbidden: not usable by user or serviceaccount, provider restricted: .spec.securityContext.hostNetwork: Invalid value: true: Host network is not allowed to be used, provider restricted: .spec.securityContext.hostPID: Invalid value: true: Host PID is not allowed to be used, spec.volumes[0]: Invalid value: "hostPath": ...

Roll back some of the changes to the other NS to just remove the run-level from the machine-config-operator to simplify this PR as other changes to the MCO are required.

[mcoops]

Confirmed for machineconfigcontroller we don't require any privileges, it can run in the restricted scc, i.e.:

# oc get pod machine-config-controller-b559cbf8-2wp7v -o yaml | grep scc
    openshift.io/scc: restricted

And the pod is running fine with no issues in the event logs:

machine-config-controller-b559cbf8-2wp7v   1/1     Running   0          75m