**What happened**:
After creating service export with subctl, ther's no way to validate it with kubectl/oc wait command, 
since Submariner ServiceExport does not have unique condition types to wait for readiness (all types are the same "Valid").

For example, on a working service export status it failed on:

$ oc wait serviceexport nginx-cl-bc --for=condition=Valid
error: timed out waiting for the condition on serviceexports/nginx-cl-bc

**What you expected to happen**:

If the service export is working, it should return something like:

multicluster.x-k8s.io/ServiceExportList condition met


**How to reproduce it (as minimally and precisely as possible)**:

# Create a service export:

$ oc get serviceexport
NAME          AGE
nginx-cl-bc   3h5m


$ oc get serviceexport -o yaml
apiVersion: v1
items:
- apiVersion: multicluster.x-k8s.io/v1alpha1
  kind: ServiceExport
  metadata:
    creationTimestamp: "2022-03-21T08:25:40Z"
    generation: 1
    name: nginx-cl-bc
    namespace: test-submariner
    resourceVersion: "115495575"
    selfLink: /apis/multicluster.x-k8s.io/v1alpha1/namespaces/test-submariner/serviceexports/nginx-cl-bc
    uid: 7af4a9ae-24f6-4d1d-9ac5-100664e03dd9
  status:
    conditions:
    - lastTransitionTime: "2022-03-21T08:25:39Z"
      message: Service doesn't have a global IP yet
      reason: ServiceGlobalIPUnavailable
      status: "False"
      type: Valid
    - lastTransitionTime: "2022-03-21T08:25:39Z"
      message: Awaiting sync of the ServiceImport to the broker
      reason: AwaitingSync
      status: "False"
      type: Valid
    - lastTransitionTime: "2022-03-21T08:25:39Z"
      message: Service was successfully synced to the broker
      reason: ""
      status: "True"
      type: Valid
    - lastTransitionTime: "2022-03-21T09:59:32Z"
      message: Service to be exported doesn't exist
      reason: ServiceUnavailable
      status: "False"
      type: Valid
    - lastTransitionTime: "2022-03-21T09:59:32Z"
      message: Service doesn't have a global IP yet
      reason: ServiceGlobalIPUnavailable
      status: "False"
      type: Valid
    - lastTransitionTime: "2022-03-21T09:59:33Z"
      message: Awaiting sync of the ServiceImport to the broker
      reason: AwaitingSync
      status: "False"
      type: Valid
    - lastTransitionTime: "2022-03-21T09:59:35Z"
      message: Service was successfully synced to the broker
      reason: ""
      status: "True"
      type: Valid
    - lastTransitionTime: "2022-03-21T10:20:16Z"
      message: Service to be exported doesn't exist
      reason: ServiceUnavailable
      status: "False"
      type: Valid
    - lastTransitionTime: "2022-03-21T10:20:16Z"
      message: Service doesn't have a global IP yet
      reason: ServiceGlobalIPUnavailable
      status: "False"
      type: Valid
kind: List
metadata:
  resourceVersion: ""
  selfLink: ""

$ oc wait serviceexport nginx-cl-bc --for=condition=Valid
error: timed out waiting for the condition on serviceexports/nginx-cl-bc


**Environment**:
- Submariner version v0.12.0