[WDF] Fix KMDF so it can compile with ReactOS SDK

Not all files are included, but these are necessary to compile cdrom driver.
So far it can only be statically linked with drivers, a proper
implementation requires wdfldr helper driver

sdk/lib/drivers/wdf/shared/support/stringutil.cpp

@@ -22,10 +22,10 @@ Revision History:
 
 --*/
 
-#include "FxSupportPch.hpp"
+#include "fxsupportpch.hpp"
 
 extern "C"  {
-#include "StringUtil.tmh"
+// #include "StringUtil.tmh"
 }
 
 size_t