vulkan/wsi: add `vk_wsi_force_swapchain_to_current_extent` driconf

Add a driconf to force the swapchain size to match
`VkSurfaceCapabilities2KHR::currentExtent` as a workaround for
misbehaved games

Fixes: 6139493ae38 ("vulkan/wsi: return VK_SUBOPTIMAL_KHR for sw/x11 on window resize")
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24818>
9 files changed