Test: Skip Kube-dns if the Kubernetes version is 1.11
Test: Skip Kube-dns if the Kubernetes version is 1.11

On Kubernetes 1.11 the dns engine is Coredns instead of Kube-dns. With
this change we avoid to have two DNS services installed when the
Coredns is in place.

Signed-off-by: Eloy Coto <2a8acc28452926ceac4d9db555411743254cf5f9@gmail.com>

scanf/cilium,scanf/cilium,tklauser/cilium,eloycoto/cilium,scanf/cilium,eloycoto/cilium,tklauser/cilium,michi-covalent/cilium,scanf/cilium,tgraf/cilium,tgraf/cilium,tklauser/cilium,scanf/cilium,scanf/cilium,scanf/cilium,cilium/cilium,michi-covalent/cilium,tgraf/cilium,michi-covalent/cilium,michi-covalent/cilium,eloycoto/cilium,cilium-team/cilium,eloycoto/cilium,tklauser/cilium,cilium/cilium,tgraf/cilium,tklauser/cilium,eloycoto/cilium,michi-covalent/cilium,tgraf/cilium,cilium/cilium,cilium/cilium,cilium-team/cilium,cilium/cilium,tgraf/cilium,eloycoto/cilium,eloycoto/cilium