consolefont: use setfont to save the current font

Using setfont directly to save the font prevents breakage
when a distro stores consolefonts in a location other than
/usr/share/consolefonts such as Arch which stores them in
/usr/share/kbd/consolefonts

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
make init.sh and init-early.sh honor SYSCONFDIR

Fixes hardcoded paths that break when built with SYSCONFDIR
set to anything other than /etc/

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>