This greatly increases performance in "Discovery Tour by Assassin's Creed:
Ancient Egypt".
The application frequently performs small (< 1 kiB) uploads to a large (128 MiB)
buffer. Without this patch, we will always create and destroy a new Vulkan
memory allocation, and the Vulkan driver will waste time zeroing the entire
allocation.
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https://gitlab.winehq.org/wine/wine/-/merge_requests/765