vulkan/wsi/wayland: avoid useless re-allocations when receiving per-surface dma-buf...

vulkan/wsi/wayland: avoid useless re-allocations when receiving per-surface dma-buf feedback

It's not just because we received dma-buf feedback that we should
re-allocate, as sometimes it is useless.

We must compare the most recent allocation parameters used and the ones
that we have with the newest feedback. So do that.

Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12226>