Move cilium kvstore settings to configmap (#7462)

This PR is to move the cilium kvstore options to the configmap
rather than specifying them in the deployment as args. This
is not technically necessary but keeping all the options in
one place is probably not a bad idea.

Tested with cilium 1.9.5.

roles/network_plugin/cilium/templates/cilium-deploy.yml.j2

@@ -45,8 +45,6 @@ spec:
         - args:
             - --debug=$(CILIUM_DEBUG)
             - --config-dir=/tmp/cilium/config-map
-            - --kvstore=etcd
-            - --kvstore-opt=etcd.config=/var/lib/etcd-config/etcd.config
           command:
             - cilium-operator
           env: