exp: run with the iSCSI support patch.

Change-Id: Ib8cdb5dbe5466426e0da13acfa1f01c2a38b4b36
diff --git a/patches/series.experimental b/patches/series.experimental
index ac285e2..e15d6de 100644
--- a/patches/series.experimental
+++ b/patches/series.experimental
@@ -5,5 +5,6 @@
 openstack/cinder/storpool-rm-backup.patch
 openstack/cinder/storpool-clone-volume.patch
 openstack/cinder/storpool-clone-across.patch
+openstack/cinder/storpool-iscsi.patch
 openstack/cinderlib/storpool-test-20190910.patch
 openstack/devstack/eatmydata.patch