Fix SD error updating Openshift operator DNS instance

This error was observed from the ServiceDiscovery controller:

"error updating Openshift DNS operator: no kind is registered
for the type v1.DNS in scheme
\"k8s.io/client-go/kubernetes/scheme/register.go:79\""

The Openshift operator types are added to the scheme used by the
controller manager but the GeneralClient needs to be set up with
the same scheme.

Signed-off-by: Tom Pantelis <tompantelis@gmail.com>

main.go

@@ -190,7 +190,9 @@ func main() {
  os.Exit(1)
  }
 
- generalClient, _ := client.New(mgr.GetConfig(), client.Options{})
+ generalClient, _ := client.New(mgr.GetConfig(), client.Options{
+ Scheme: scheme,
+ })
 
  if err = submariner.NewReconciler(&submariner.Config{
  ScopedClient: mgr.GetClient(),