Fix include naming for cross build

Author: lazka

Modules/posixmodule.c

@@ -9337,7 +9337,7 @@ os_setpgrp_impl(PyObject *module)
 
 #ifdef MS_WINDOWS
 #include <winternl.h>
-#include <ProcessSnapshot.h>
+#include <processsnapshot.h>
 
 // The structure definition in winternl.h may be incomplete.
 // This structure is the full version from the MSDN documentation.

PC/_wmimodule.cpp

@@ -14,9 +14,9 @@
 #endif
 
 #define _WIN32_DCOM
-#include <Windows.h>
+#include <windows.h>
 #include <comdef.h>
-#include <Wbemidl.h>
+#include <wbemidl.h>
 #include <propvarutil.h>
 
 #include <Python.h>