Fixed a typo in tg-agent

It should be td-agent.

TrivialFix

Change-Id: I4b7d573cc684d28515fa944186a04bc26efab521

ansible/roles/common/tasks/config.yml

@@ -61,7 +61,7 @@
     - "00-record_transformer"
     - "01-rewrite"
 
-- name: Copying over tg-agent.conf
+- name: Copying over td-agent.conf
   template:
     src: "td-agent.conf.j2"
     dest: "{{ node_config_directory }}/{{ item }}/td-agent.conf"