vulkan/wsi: Signal buffer memory object when blitting

When we're using the PRIME path and using vkCmdCopyImageToBuffer to copy
to a linear image, the buffer memory is what's shared with the window
system.  For legacy drivers that depend on memory signaling via
wsi_memory_signal_submit_info, we need to tell the driver to signal the
buffer memory, not the image memory or else the window system may wait
on a driver-internal buffer and not wait for the copy to complete.

Cc: mesa-stable
Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34218>

src/vulkan/wsi/wsi_common.c

@@ -1535,7 +1535,8 @@ wsi_common_queue_present(const struct wsi_device *wsi,
             has_signal_dma_buf = false;
             mem_signal = (struct wsi_memory_signal_submit_info) {
                .sType = VK_STRUCTURE_TYPE_WSI_MEMORY_SIGNAL_SUBMIT_INFO_MESA,
-               .memory = image->memory,
+               .memory = swapchain->blit.type == WSI_SWAPCHAIN_NO_BLIT ?
+                         image->memory : image->blit.memory,
             };
             __vk_append_struct(&submit_info, &mem_signal);
          }