add area/cloudprovider label for changes in pkg/cloudprovider & k8s.io/cloud-provider
add area/cloudprovider label for changes in pkg/cloudprovider & k8s.io/cloud-provider

Signed-off-by: Andrew Sy Kim <kiman@vmware.com>

Kubernetes-commit: e2ad79a30287be9aff2d4adfdad16319b076b647

kubernetes/cloud-provider