pan/tex: Allow format reinterpretation on v9+

Creating views of images using a different format should be possible
as long as the internal layout match. Pick the format of the view
rather than the original image format when creating texture planes
on v9.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30695>

src/panfrost/lib/pan_texture.c

@@ -364,7 +364,7 @@ panfrost_emit_plane(const struct pan_image_view *iview, int index,
                     mali_ptr plane2_ptr, void **payload)
 {
    const struct util_format_description *desc =
-      util_format_description(layout->format);
+      util_format_description(format);
 
    assert(row_stride >= 0 && surface_stride >= 0 && "negative stride");