[VFS] Fixed crash on filename extraction from path.

Names are in CP1252 which fails conversion to utf8.

src/xenia/vfs/devices/null_entry.h

@@ -22,7 +22,8 @@ class NullDevice;
 
 class NullEntry : public Entry {
  public:
-  NullEntry(Device* device, Entry* parent, std::string path);
+  NullEntry(Device* device, Entry* parent, std::string path,
+            const std::string_view name);
   ~NullEntry() override;
 
   static NullEntry* Create(Device* device, Entry* parent,