docs(changelog): changelog for lts-v2.10.15 release

Change-Id: I389e594db6ea28cde73f1d808aa21b215b5ca541
Signed-off-by: Release CI <ci@trustedfirmware.org>
diff --git a/docs/conf.py b/docs/conf.py
index aac2134..e6ac614 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,8 +14,8 @@
 
 project = "Trusted Firmware-A"
 author = "Trusted Firmware-A contributors"
-version = "2.10.14"
-release = "2.10.14"
+version = "2.10.15"
+release = "2.10.15"
 
 # -- General configuration ---------------------------------------------------