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/openstack/cinder/sep-sp-rm-backup.patch b/patches/openstack/cinder/sep-sp-rm-backup.patch
index 76efaf2..286f786 100644
--- a/patches/openstack/cinder/sep-sp-rm-backup.patch
+++ b/patches/openstack/cinder/sep-sp-rm-backup.patch
@@ -1,7 +1,7 @@
-From ade8da3e2df38eaf08717009cc1e874af01aca9d Mon Sep 17 00:00:00 2001
+From cf775ebf2b001ae3e0fcbfea51ff0fba03becb72 Mon Sep 17 00:00:00 2001
 From: Peter Penchev <openstack-dev@storpool.com>
 Date: Mon, 11 May 2020 11:02:53 +0300
-Subject: [PATCH 5/7] StorPool driver: remove the obsolete backup_volume()
+Subject: [PATCH 05/10] StorPool driver: remove the obsolete backup_volume()
 
 Follow suit with I984de3df803f12dbb95e3309e668b3fbd519e70f.
 
@@ -11,10 +11,10 @@
  1 file changed, 29 deletions(-)
 
 diff --git a/cinder/volume/drivers/storpool.py b/cinder/volume/drivers/storpool.py
-index 353329085..cccda8ecb 100644
+index cffbe9ee0..c183a506d 100644
 --- a/cinder/volume/drivers/storpool.py
 +++ b/cinder/volume/drivers/storpool.py
-@@ -315,35 +315,6 @@ class StorPoolDriver(driver.VolumeDriver):
+@@ -316,35 +316,6 @@ class StorPoolDriver(driver.VolumeDriver):
              'pools': pools
          }
  
@@ -51,5 +51,5 @@
          req_id = context.request_id
          volname = self._attach.volumeName(volume['id'])
 -- 
-2.35.1
+2.39.2