r600g: Implement GL_ARB_texture_query_lod

Requires Evergreen or later

v2 (Andreas): Update relnotes/10.3

Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
diff --git a/docs/GL3.txt b/docs/GL3.txt
index f9e33b4..e386b66 100644
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -119,7 +119,7 @@
   GL_ARB_texture_buffer_object_rgb32                   DONE (i965, nvc0, r600, radeonsi, softpipe)
   GL_ARB_texture_cube_map_array                        DONE (i965, nv50, nvc0, r600, radeonsi, softpipe)
   GL_ARB_texture_gather                                DONE (i965, nv50, nvc0, radeonsi, r600)
-  GL_ARB_texture_query_lod                             DONE (i965, nv50, nvc0, radeonsi)
+  GL_ARB_texture_query_lod                             DONE (i965, nv50, nvc0, r600, radeonsi)
   GL_ARB_transform_feedback2                           DONE (i965, nv50, nvc0, r600, radeonsi)
   GL_ARB_transform_feedback3                           DONE (i965, nv50, nvc0, r600, radeonsi)