docs(changelog): changelog for lts-v2.8.22 release

Change-Id: I07f6a6ebf4ca334c6384a7788852aa07577d0bd9
Signed-off-by: Release CI <ci@trustedfirmware.org>
diff --git a/readme.rst b/readme.rst
index f522141..5de57e6 100644
--- a/readme.rst
+++ b/readme.rst
@@ -54,3 +54,4 @@
 
 
 
+