Dnsmasq has own internal TFTP service limited to read-only operations,
but it's enough for PXE boot. Xinetd has been removed from Fedora 34.
Co-Authored-By: Dmitry Tantsur <dtantsur@protonmail.com>
Change-Id: Id34867b98b51835a1e07ffc2f7c8d41e02d8452d