Convert the serial init to the generic romstage component and
corresponding boards using this sio.
Change-Id: I36bcf38c4351130be1ed924ecfe606336d0433f3
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5588
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
ffe460d77a