Add params for validation

Add run_validation, image_ssh_user, image_ssh_password and connect_method params
Related-prod: PROD-19442

Change-Id: Ie0a70b78a7594bdc21ca5c02b40cb35ac5583e28
diff --git a/metadata/service/tempest/init.yml b/metadata/service/tempest/init.yml
index 33fca88..2c61d2f 100644
--- a/metadata/service/tempest/init.yml
+++ b/metadata/service/tempest/init.yml
@@ -84,3 +84,5 @@
       scenario:
         img_file: ${_param:runtest_local_img_file}
         img_dir: ${_param:runtest_local_img_dir}
+      validation:
+        run_validation: true