identity: Add well-known identity for EKS CoreDNS (k8s >= 1.11)
identity: Add well-known identity for EKS CoreDNS (k8s >= 1.11)

Labels:
   k8s:io.cilium.k8s.policy.serviceaccount=coredns
   k8s:io.kubernetes.pod.namespace=kube-system
   k8s:k8s-app=kube-dns
   k8s:io.cilium.k8s.policy.cluster=default
   k8s:eks.amazonaws.com/component=coredns

Reported-by: da39a3ee5e6b4b0d3255bfef95601890afd80709@brant4test
Reported-by: da39a3ee5e6b4b0d3255bfef95601890afd80709@stereonucleosis
Signed-off-by: Thomas Graf <5f50a84c1fa3bcff146405017f36aec1a10a9e38@cilium.io>

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