cinder: exp: enable multipath

Change-Id: Ife52a39fd93038ef847d9713fdd1d24ea3596b27
diff --git a/zuul.d/sp-cinder.yaml b/zuul.d/sp-cinder.yaml
index 63671db..c38021e 100644
--- a/zuul.d/sp-cinder.yaml
+++ b/zuul.d/sp-cinder.yaml
@@ -56,6 +56,11 @@
               # cfg: iscsi
               iscsi_export_to: "\\\\*"
               iscsi_portal_group: pg
+              use_multipath_for_image_xfer: True
+          $NOVA_CONF:
+            libvirt:
+              # cfg: iscsi
+              volume_use_multipath: True
       tempest_test_regex: |
         volume|^cinder_tempest_plugin
 #        ^cinder_tempest_plugin