Update the StorPool Cinder patches

The context for some of them changed in the Cinder master branch, so
`git am` was no longer able to apply them directly. Also, import some
updates to the patches - documentation, release notes, etc - so that
they match exactly what is submitted to the OpenDev Gerrit instance for
merging upstream.

Change-Id: Iacd95c275340faa435a2bf3a83a61e28ab8f8bf3
diff --git a/patches/openstack/cinder/sep-sp-cosmetic-comments.patch b/patches/openstack/cinder/sep-sp-cosmetic-comments.patch
index 27d4f1b..d2ea5d3 100644
--- a/patches/openstack/cinder/sep-sp-cosmetic-comments.patch
+++ b/patches/openstack/cinder/sep-sp-cosmetic-comments.patch
@@ -1,4 +1,4 @@
-From 13e958bd85997cd84c37b76c0282bbfde5b9224a Mon Sep 17 00:00:00 2001
+From 1bf20850bdbd86997a59bc639ae51be71dd99da8 Mon Sep 17 00:00:00 2001
 From: Peter Penchev <openstack-dev@storpool.com>
 Date: Mon, 13 Feb 2023 11:15:27 +0200
 Subject: [PATCH 03/10] StorPool: cosmetic: comment headings instead of empty
@@ -13,9 +13,11 @@
  cinder/volume/drivers/storpool.py | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)
 
+diff --git a/cinder/volume/drivers/storpool.py b/cinder/volume/drivers/storpool.py
+index 328f76c00..8c2989fa8 100644
 --- a/cinder/volume/drivers/storpool.py
 +++ b/cinder/volume/drivers/storpool.py
-@@ -302,15 +302,16 @@
+@@ -302,15 +302,16 @@ class StorPoolDriver(driver.VolumeDriver):
                         ) for t in templates]
  
          self._stats = {
@@ -34,3 +36,6 @@
              'pools': pools
          }
  
+-- 
+2.40.1
+