EM: Update name to Flatcar Container Linux

's | Flatcar | Flatcar Container Linux | g'

Signed-off-by: Suraj Deshmukh <suraj@kinvolk.io>

Author: surajssd

assets/terraform-modules/packet/flatcar-linux/kubernetes/cl/controller.yaml.tmpl

@@ -76,7 +76,7 @@ systemd:
       enable: true
       contents: |
         [Unit]
-        Description=Flatcar Metadata Agent
+        Description=Flatcar Container Linux Metadata Agent
         [Service]
         Type=oneshot
         Restart=on-failure