CORD-2516 Add hss_db synchronizer to whitelist

Change-Id: I455fa2cffe8d94ab7dc601ab6335245bdc0f4cc2
diff --git a/docker_images.yml b/docker_images.yml
index 38411aa..8605134 100644
--- a/docker_images.yml
+++ b/docker_images.yml
@@ -212,6 +212,11 @@
     path: "xos/synchronizer"
     dockerfile: "Dockerfile.synchronizer"
 
+  - name: xosproject/hssdb-synchronizer
+    repo: hss_db
+    path: "xos/synchronizer"
+    dockerfile: "Dockerfile.synchronizer"
+
   - name: xosproject/venb-synchronizer
     repo: venb
     path: "xos/synchronizer"
@@ -251,4 +256,3 @@
     repo: templateservice
     path: "xos/synchronizer"
     dockerfile: "Dockerfile.synchronizer"
-