docs: add sha256 checksums for 17.0.7

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
diff --git a/docs/relnotes/17.0.7.html b/docs/relnotes/17.0.7.html
index 124c6a7..76e5bc6 100644
--- a/docs/relnotes/17.0.7.html
+++ b/docs/relnotes/17.0.7.html
@@ -31,7 +31,8 @@
 
 <h2>SHA256 checksums</h2>
 <pre>
-TBD
+bc68d13c6b1a053b855ac453ebf7e62bd89511adf44bad6c613e09f7fa13390a  mesa-17.0.7.tar.gz
+f6d75304a229c8d10443e219d6b6c0c342567dbab5a879ebe7cfa3c9139c4492  mesa-17.0.7.tar.xz
 </pre>