docs(changelog): changelog for lts-v2.10.4 release

Change-Id: I5fe34502a91a16ae71f44644a391803d2f9d6098
Signed-off-by: Release CI <ci@trustedfirmware.org>
diff --git a/docs/conf.py b/docs/conf.py
index 59bd28f..ef7fe7e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,8 +14,8 @@
 
 project = "Trusted Firmware-A"
 author = "Trusted Firmware-A contributors"
-version = "2.10.3"
-release = "2.10.3"
+version = "2.10.4"
+release = "2.10.4"
 
 # -- General configuration ---------------------------------------------------