docs: update ARB_cull_distance status.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/docs/GL3.txt b/docs/GL3.txt
index 7e86f5e..66619d7 100644
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -211,7 +211,7 @@
   GL_ARB_ES3_1_compatibility                            not started
   GL_ARB_clip_control                                   DONE (i965, nv50, nvc0, r600, radeonsi, llvmpipe, softpipe, swr)
   GL_ARB_conditional_render_inverted                    DONE (i965, nv50, nvc0, r600, radeonsi, llvmpipe, softpipe, swr)
-  GL_ARB_cull_distance                                  DONE (i965, nv50, nvc0)
+  GL_ARB_cull_distance                                  DONE (i965, nv50, nvc0, llvmpipe, softpipe)
   GL_ARB_derivative_control                             DONE (i965, nv50, nvc0, r600, radeonsi)
   GL_ARB_direct_state_access                            DONE (all drivers)
   GL_ARB_get_texture_sub_image                          DONE (all drivers)