vk/wsi/x11: handle geometry updating more asynchronously

vk/wsi/x11: handle geometry updating more asynchronously

this uses geometry updates from events when possible in order to avoid
roundtripping during vkGetPhysicalDeviceSurfaceCapabilitiesKHR, which
significantly improves wsi performance in severely bottlenecked scenarios

now that roundtripping is completely eliminated from acquires in most scenarios,
this improves acquire perf by 10%+

Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23835>