Add rgw_swift_enforce_content_length.
 * Some tempest tests use accept-ranges header, which is added by this param.

Closes-Bug:PROD-24333(PROD:24333)

Change-Id: Iad7b31e49a91b2bd99cd7004d812778808ca75cb
(cherry picked from commit 39897a34db2e7e451ba8425ef000fb91cab9e538)
diff --git a/ceph/radosgw/single.yml b/ceph/radosgw/single.yml
index d6b9bf7..93db9bb 100644
--- a/ceph/radosgw/single.yml
+++ b/ceph/radosgw/single.yml
@@ -18,4 +18,5 @@
           rgw_dns_name : ${_param:cluster_domain}
           rgw_print_continue: True
           rgw_content_length_compat: true
+          rgw_swift_enforce_content_length: true
           user: www-data