Add spec to ProviderSpec

gistfile1.txt

type OpenstackClusterProviderSpec struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec ClusterSpec `json:"spec,omitempty"`
}

type ClusterSpec struct {
	// NodeCIDR is the OpenStack Subnet to be created
	NodeCIDR string `json:"nodeCidr,omitempty"`
	// Floating IP which will be assigned to a created loadbalancer. If not provided,
	// no loadbalancer will be created.
	FloatingIP        string `json:"floatingIP,omitempty"`
	ExternalNetworkID string `json:"externalNetworkId"`
}

e.g.

apiVersion: "cluster.k8s.io/v1alpha1"
kind: Cluster
metadata:
  name: cluster
  namespace: cluster-aws
spec:
  clusterNetwork:
    services:
      cidrBlocks:
        - $(CLUSTER_SERVICES_CIDR_BLOCK)
    pods:
      cidrBlocks:
        - $(CLUSTER_PODS_CIDR_BLOCK)
    serviceDomain: $(CLUSTER_SERVICE_DOMAIN)
  providerConfig:
    value:
      apiVersion: "awsprovider/v1alpha1"
      kind: "AWSClusterProviderConfig"
      region: $(CLUSTER_REGION)
      sshKeyName: $(CLUSTER_SSH_KEY_NAME)

vs.

apiVersion: "cluster.k8s.io/v1alpha1"
kind: Cluster
metadata:
  name: cluster
  namespace: cluster-aws
spec:
  clusterNetwork:
    services:
      cidrBlocks:
        - $(CLUSTER_SERVICES_CIDR_BLOCK)
    pods:
      cidrBlocks:
        - $(CLUSTER_PODS_CIDR_BLOCK)
    serviceDomain: $(CLUSTER_SERVICE_DOMAIN)
  providerConfig:
    value:
      apiVersion: "awsprovider/v1alpha1"
      kind: "AWSClusterProviderConfig"
	  spec:
        region: $(CLUSTER_REGION)
        sshKeyName: $(CLUSTER_SSH_KEY_NAME)