arm64: dts: renesas: ulcb-kf: Add HSCIF1 node

Exposed on CN4. Tested by connecting it to a Renesas Ebisu board.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230525084823.4195-3-wsa+renesas@sang-engineering.com


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