dovecot: Use $ssl::ciphersuites::default_ciphersuites for Dovecot TLS connections.

dovecot/manifests/init.pp

@@ -35,6 +35,8 @@ class dovecot::common {
 #
 class dovecot::server inherits dovecot::common {
 
+    include ssl::ciphersuites
+
     if ! $dovecot_mailbox_format {
         $dovecot_mailbox_format = "mbox"
     }