Sparse file generation replaced with Go native calls.
Final artifact `.tar` reproducible with new tar flags and using GNU tar
instead of busybox one, but as the image itself is not reproducible,
this only helps a bit.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
This introduces the notion of a "board" in Talos. A board is an interface that is capable
of modifying the installation in specific ways for a given SBC. This also adds support for the
libretech_all_h3_cc_h5.
Signed-off-by: Andrew Rynhard <andrew@rynhard.io>
