nv30: always go through translate module on big-endian

It seems like things are either coming in slighly wrong, or perhaps
uploaded incorrectly, but either way passing them through the translate
module seems to fix everything. Eventually we should figure out what's
going wrong and fix it "for real", but this should do for now.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org

src/gallium/drivers/nouveau/nv30/nv30_vbo.c

@@ -191,7 +191,11 @@ nv30_vbo_validate(struct nv30_context *nv30)
    if (!nv30->vertex || nv30->draw_flags)
       return;
 
+#ifdef PIPE_ARCH_BIG_ENDIAN
+   if (1) { /* Figure out where the buffers are getting messed up */
+#else
    if (unlikely(vertex->need_conversion)) {
+#endif
       nv30->vbo_fifo = ~0;
       nv30->vbo_user = 0;
    } else {