Fix skydive analyzer "etcd" config

When an external Etcd server is used, config is generated like following:

etcd:
  client_timeout: 100
  embeded: no
  servers:
    - http://10.200.200.10:2379

"embeded" config has wrong spelling, the good one is "embedded".
Hence default config is used (yes), and external Etcd server is not used.

Closes-Bug: #1697614
Change-Id: I59ac990b0b865c926b53f829bdfea186fc1e10b1

ansible/roles/skydive/templates/skydive-analyzer.conf.j2

@@ -17,13 +17,13 @@ openstack:
 etcd:
   client_timeout: 100
 {% if enable_etcd == "yes" %}
-  embeded: no
+  embedded: false
   servers:
 {% for host in groups['etcd'] %}
     - http://{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ etcd_client_port }}
 {% endfor %}
 {% else %}
-  embeded: yes
+  embedded: true
   servers:
 {% for host in groups['skydive-analyzer'] %}
   - http://{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ etcd_client_port }}