docs(changelog): changelog for v2.11 release

Generated this change-log using below command:
npm run release -- --skip.commit --skip.tag --release-as 2.11.0

Change-Id: I34c7b342549781057da1b18116500f110bc3f5ad
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Signed-off-by: Juan Pablo Conde <JuanPablo.Conde@arm.com>
diff --git a/docs/conf.py b/docs/conf.py
index d4e5423..3f9655b 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,8 +14,8 @@
 
 project = "Trusted Firmware-A"
 author = "Trusted Firmware-A contributors"
-version = "2.10.0"
-release = "2.10.0"
+version = "2.11.0"
+release = "2.11.0"
 
 # -- General configuration ---------------------------------------------------