Contains quite a lot of fixes, so for information and details about
them, please have a look at https://www.virtualbox.org/wiki/Changelog.
We also needed to drop the hunk about NATNetworkServiceRunner.cpp in the
hardened.patch, because the file was unused and thus has been removed
from upstream in r54821:
https://www.virtualbox.org/changeset?reponame=vbox&new=54821
Tested successfully against nixos/tests/virtualbox.nix.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>