keps: Update KEP with updated repository structure

... also add Cloud Provider specific  SIGs as participants on this KEP.
Removes proposed repositories for Cloud Provider implementations
currently without a related SIG.

keps/0002-controller-manager.md

@@ -6,9 +6,13 @@ authors:
   - "@calebamiles"
 owning-sig: sig-apimachinery
 participating-sigs:
-  - sig-storage
   - sig-apps
+  - sig-aws
+  - sig-azure
+  - sig-gcp
   - sig-network
+  - sig-openstack
+  - sig-storage
 reviewers:
   - "@wlan0"
   - "@calebamiles"
@@ -280,15 +284,11 @@ We propose the following repository structure for the cloud providers which
 currently live in `kubernetes/pkg/cloudprovider/providers/*`
 
 ```
-[email protected]:kubernetes/wg-cloud-provider
-[email protected]:kubernetes/aws-cloud-provider
-[email protected]:kubernetes/azure-cloud-provider
-[email protected]:kubernetes/cloudstack-cloud-provider
-[email protected]:kubernetes/gce-cloud-provider
-[email protected]:kubernetes/openstack-cloud-provider
-[email protected]:kubernetes/ovirt-cloud-provider
-[email protected]:kubernetes/photon-cloud-provider
-[email protected]:kubernetes/vsphere-cloud-provider
+[email protected]:kubernetes/cloud-provider-wg
+[email protected]:kubernetes/cloud-provider-aws
+[email protected]:kubernetes/cloud-provider-azure
+[email protected]:kubernetes/cloud-provider-gcp
+[email protected]:kubernetes/cloud-provider-openstack
 ```
 
 We propose this structure in order to obtain