Update flannel version to v0.11.0 (#4190)

Change-Id: I27d670803bea82a68d5eb0e49d4677f4afdce55f

README.md

@@ -121,7 +121,7 @@ Supported Components
     -   [canal](https://github.com/projectcalico/canal) (given calico/flannel versions)
     -   [cilium](https://github.com/cilium/cilium) v1.3.0
     -   [contiv](https://github.com/contiv/install) v1.2.1
-    -   [flanneld](https://github.com/coreos/flannel) v0.10.0
+    -   [flanneld](https://github.com/coreos/flannel) v0.11.0
     -   [kube-router](https://github.com/cloudnativelabs/kube-router) v0.2.1
     -   [multus](https://github.com/intel/multus-cni) v3.1.autoconf
     -   [weave](https://github.com/weaveworks/weave) v2.5.0

roles/download/defaults/main.yml

@@ -50,7 +50,7 @@ calico_cni_version: "v3.4.0"
 calico_policy_version: "v3.4.0"
 calico_rr_version: "v0.6.1"
 
-flannel_version: "v0.10.0"
+flannel_version: "v0.11.0"
 flannel_cni_version: "v0.3.0"
 
 cni_version: "v0.6.0"