Convert Marzen to use board-specific serial0 and serial1 instead
of the older shared SoC-specific SCIF index.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>