windows hidapi: fix header compilation

src/hidapi/windows/hidapi_descriptor_reconstruct.h

@@ -16,6 +16,8 @@
  code repository located at:
         https://github.com/libusb/hidapi .
 ********************************************************/
+#include "SDL_internal.h"
+
 #ifndef HIDAPI_DESCRIPTOR_RECONSTRUCT_H__
 #define HIDAPI_DESCRIPTOR_RECONSTRUCT_H__