i965: Use VBOs in the VBO module on 965, now that we have ARB_map_buffer_range.

This looks like it's a small win on blender.

src/mesa/drivers/dri/i965/brw_context.c

@@ -167,6 +167,8 @@ GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 
    brw_draw_init( brw );
 
+   vbo_use_buffer_objects(ctx);
+
    return GL_TRUE;
 }