Create /dev/fd symlink to /proc/self/fd
Create /dev/fd symlink to /proc/self/fd

Some applications and scripts are using /dev/fd. Netconfig and
openSUSE network scripts are in such a case, getting the symlink makes
them work.

Note that this doesn't need to be done for the LXC case as libvirt
already does it for us.

agx/libvirt-sandbox-debian,libvirt/libvirt-sandbox,libvirt/libvirt-sandbox,agx/libvirt-sandbox-debian,agx/libvirt-sandbox-debian,agx/libvirt-sandbox-debian,libvirt/libvirt-sandbox,agx/libvirt-sandbox-debian