tkn cli serving pod not getting created on infra node

the pod serving the tkn cli is created in openshift addon section and currently we don't pass the config.nodeSelector and config.tolerations to TektonAddon

to fix this, we need to pass both the configurations from TektonConfig to TektonAddon and later use `AddConfiguration` transformer to add in the deployment.

fields example: https://github.com/tektoncd/operator/blob/91460bed88672f6feb6a6dbec11663e74aef9b6a/pkg/apis/operator/v1alpha1/tektonpipeline_types.go#L51

Transformer: https://github.com/tektoncd/operator/blob/91460bed88672f6feb6a6dbec11663e74aef9b6a/pkg/reconciler/kubernetes/tektonpipeline/tektonpipeline.go#L347