proxmox_restore_daemon: mount ntfs with 'utf8' option

otherwise, the kernel driver exposes file names as iso 8859-1,
but we want to have them as utf8.

This mapping should always work, since UTF16 can be cleanly converted
to UTF8.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

src/bin/proxmox_restore_daemon/disk.rs

@@ -31,6 +31,8 @@ lazy_static! {
         // whatever the user is trying to restore is not using anything older...
         m.insert("ufs", "ufstype=ufs2");
 
+        m.insert("ntfs", "utf8");
+
         m
     };
 }