Fixes #34774 - don't expose tftp syslinux files directly
advanced users who might want to change this, can override this bysetting `foreman_proxy::globals::tftp_syslinux_filenames` in hiera
Fixes #34774 - don't expose tftp syslinux files directly
advanced users who might want to change this, can override this by
setting `foreman_proxy::globals::tftp_syslinux_filenames` in hiera