Refresh the Cinder patches

Add the minor comment-only patch that was requested via a review.
Refresh the rest of the patches against the Cinder master branch.

Change-Id: I0a5f2b052654d36e2be2d86849c2436c0a34c80b
diff --git a/patches/series.experimental b/patches/series.experimental
index b707700..6c1928d 100644
--- a/patches/series.experimental
+++ b/patches/series.experimental
@@ -1,6 +1,7 @@
 openstack/cinder/sep-glance-upload-uri.patch
 openstack/cinder/sep-clone-across-pools.patch
 openstack/cinder/sep-sp-clone-across-pools.patch
+openstack/cinder/sep-sp-cosmetic-comments.patch
 openstack/cinder/sep-sp-leave-it-to-brick.patch
 openstack/cinder/sep-sp-rm-backup.patch
 openstack/cinder/sep-sp-rm-copy-volimg.patch