docs(changelog): changelog for lts-v2.10.5 release

Change-Id: If03c26d43da69fe6c446baa499f2884cb2986362
diff --git a/docs/conf.py b/docs/conf.py
index ef7fe7e..6590c34 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,8 +14,8 @@
 
 project = "Trusted Firmware-A"
 author = "Trusted Firmware-A contributors"
-version = "2.10.4"
-release = "2.10.4"
+version = "2.10.5"
+release = "2.10.5"
 
 # -- General configuration ---------------------------------------------------