Remove incorrect alias for BindVertexArray.

From Mesa:
        /* The "Interactions with APPLE_vertex_array_object" section of the
          * GL_ARB_vertex_array_object spec says:
          *
          *     "The first bind call, either BindVertexArray or
          *     BindVertexArrayAPPLE, determines the semantic of the object."
          */
Add a missing ATI enum token to the registry.

There's no spec for this, but it's mentioned widely enough on the
internet that they'd better not allocate anything else to it.