locale: Allow disabling locale configuration

roles/locale/defaults/main.yaml

@@ -1,6 +1,7 @@
 ---
 locale_package: []
 locale_gen: true
+lcocale_configure: true
 
 gen_locales:
   - en_US.UTF-8

roles/locale/tasks/main.yaml

@@ -18,3 +18,4 @@
     src: locale.j2
     dest: "{{ locale_config }}"
     mode: '0644'
+  when: locale_configure