dzn: Fix qpool->queries_lock double lock

Fix defect reported by Coverity Scan.

Double lock (LOCK)
double_lock: mtx_lock locks qpool->queries_lock while it is locked.

Fixes: a012b21964 ("microsoft: Initial vulkan-on-12 driver")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23455>

src/microsoft/vulkan/dzn_query.c

@@ -240,7 +240,7 @@ dzn_ResetQueryPool(VkDevice device,
          query->fence = NULL;
       }
    }
-   mtx_lock(&qpool->queries_lock);
+   mtx_unlock(&qpool->queries_lock);
 
    memset((uint8_t *)qpool->collect_map + dzn_query_pool_get_result_offset(qpool, firstQuery),
           0, queryCount * qpool->query_size);