Merge pull request #1283 from edx/jarv/edxapp-defaults

updating name of VIDEO_CDN_URL

playbooks/roles/edxapp/defaults/main.yml

@@ -536,7 +536,7 @@ lms_env_config:
   <<: *edxapp_generic_env
   PAID_COURSE_REGISTRATION_CURRENCY: $EDXAPP_PAID_COURSE_REGISTRATION_CURRENCY
   SITE_NAME:  $EDXAPP_LMS_SITE_NAME
-  EDXAPP_VIDEO_CDN_URL: $EDXAPP_VIDEO_CDN_URLS
+  VIDEO_CDN_URL: $EDXAPP_VIDEO_CDN_URLS
   CODE_JAIL:
     # from https://github.com/edx/codejail/blob/master/codejail/django_integration.py#L24, '' should be same as None
     python_bin: '{% if EDXAPP_PYTHON_SANDBOX %}{{ edxapp_sandbox_venv_dir }}/bin/python{% endif %}'