scons: Add nvc0 to SConscript.
diff --git a/src/gallium/SConscript b/src/gallium/SConscript
index 2265f1d..3158055 100644
--- a/src/gallium/SConscript
+++ b/src/gallium/SConscript
@@ -42,6 +42,7 @@
     #     SConscript([
     #         'drivers/nouveau/SConscript', 
     #         'drivers/nv50/SConscript', 
+    #         'drivers/nvc0/SConscript', 
     #         'drivers/nvfx/SConscript',
     #     ])