use uint32_t for win

diff --git a/vkh b/vkh
index 333f82ef13820d39f40b02952369f9aa12efe1a5..947523ab880b6b3cc0fef08c48ddd4714c82c302 160000 (submodule)
--- a/vkh
+++ b/vkh
@@ -1 +1 @@
-Subproject commit 333f82ef13820d39f40b02952369f9aa12efe1a5
+Subproject commit 947523ab880b6b3cc0fef08c48ddd4714c82c302