Fix manifests for EKS creation in SW catalog to update subnet selector labels in nodegroup.yaml

Change-Id: I739460271260e86f81a12284bc4c127815146fd7
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

installers/mgmt-cluster/flux/templates/sw-catalogs/cloud-resources/eks/manifests/eks-cluster/nodegroup.yaml

@@ -39,6 +39,7 @@ spec:
         type: ec2
     subnetIdSelector:
         matchLabels:
+          cluster: ${cluster_resource_name}
           type: subnet
           access: private
     scalingConfig: