Allow to define SSL parameters for nginx site

Change-Id: I8f95d69e0406630c6eef953fae7018bb42d290d2
See: https://mirantis.jira.com/browse/PROD-24384
diff --git a/aptly/files/nginx.conf b/aptly/files/nginx.conf
index 426b1a6..e42c7c9 100644
--- a/aptly/files/nginx.conf
+++ b/aptly/files/nginx.conf
@@ -3,6 +3,7 @@
 
 server {
   {%- include "nginx/files/_name.conf" %}
+  {%- include "nginx/files/_ssl.conf" %}
   {%- include "nginx/files/_log.conf" %}
   root {{ server.root_dir }}/public;
   location / {