etnaviv: allow 3D textures with TS in transfer

The resolve operation to the temporary resource properly iterates
over all layers of the 3D texture, so there is no need to fail the
transfer if we encounter a 3D texture that has a TS BO allocated
due to previous rendering.

Fixes piglit spec@arb_framebuffer_object@fbo-generatemipmap-3d

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17996>

src/gallium/drivers/etnaviv/etnaviv_transfer.c

@@ -271,12 +271,6 @@ etna_transfer_map(struct pipe_context *pctx, struct pipe_resource *prsc,
          return NULL;
       }
 
-      if (prsc->depth0 > 1 && rsc->ts_bo) {
-         slab_free(&ctx->transfer_pool, trans);
-         BUG("resource has depth >1 with tile status");
-         return NULL;
-      }
-
       struct pipe_resource templ = *prsc;
       templ.nr_samples = 0;
       templ.bind = PIPE_BIND_RENDER_TARGET;