nv50: add support for GL_EXT_window_rectangles

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
diff --git a/docs/relnotes/12.1.0.html b/docs/relnotes/12.1.0.html
index a334602..096f551 100644
--- a/docs/relnotes/12.1.0.html
+++ b/docs/relnotes/12.1.0.html
@@ -46,7 +46,7 @@
 <ul>
 <li>GL_ARB_shader_group_vote on nvc0</li>
 <li>GL_ARB_ES3_1_compatibility on i965</li>
-<li>GL_EXT_window_rectangles on nvc0</li>
+<li>GL_EXT_window_rectangles on nv50, nvc0</li>
 </ul>
 
 <h2>Bug fixes</h2>