manifests: ensure kube-bridge uses latest CIDR
This commit ensures that the kube-bridge uses the latest CIDR assigned
by the Kubernetes API, rather than defaulting to a previously assigned
CIDR.
xref:
* https://github.com/containernetworking/plugins/tree/master/plugins/main/bridge#network-configuration-reference
* https://github.com/cloudnativelabs/kube-router/issues/689
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>