pinctrl: renesas: r8a779g0: Add missing MODSELx for TSN0

TSN0 needs MODSEL4 settings.
This patch adds missing MODSELx settings for the affected pins.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87letdsj8e.wl-kuninori.morimoto.gx@renesas.com


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