r/kubelet: Pass --config arg to service

The systemd unit configuration installed by Fedora's _kubeadm_ package
does not pass the `--config` argument to the kubelet service.  Without
this argument, the kubelet will not read the configuration file
generated by `kubeadm` from the `kubelet-config` ConfigMap.  Thus,
various features will not work correctly, including server TLS
bootstrap.

roles/kubelet/handlers/main.yml

@@ -9,3 +9,8 @@
 - name: swapoff -a
   command:
     swapoff -a
+
+- name: restart kubelet
+  service:
+    name: kubelet
+    state: restarted