docs: add sha256 checksums for 11.2.2

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
diff --git a/docs/relnotes/11.2.2.html b/docs/relnotes/11.2.2.html
index 0701904..4f634b8 100644
--- a/docs/relnotes/11.2.2.html
+++ b/docs/relnotes/11.2.2.html
@@ -31,7 +31,8 @@
 
 <h2>SHA256 checksums</h2>
 <pre>
-TBD
+e2453014cd2cc5337a5180cdeffe8cf24fffbb83e20a96888e2b01df868eaae6  mesa-11.2.2.tar.gz
+40e148812388ec7c6d7b6657d5a16e2e8dabba8b97ddfceea5197947647bdfb4  mesa-11.2.2.tar.xz
 </pre>