arm64: dts: renesas: spider-cpu: Switch from SCIF3 to HSCIF0

Every loader before Linux utilizes HSCIF0 with a speed of 1843200 bps.
Make Linux behave the same.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220613131033.10053-2-wsa+renesas@sang-engineering.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>