pinctrl: renesas: Select PINCTRL_RZG2L for RZ/V2H(P) SoC

Add explicit selection of the PINCTRL_RZG2L config option for the
RZ/V2H(P) (R9A09G057) SoC, ensuring pin control driver is enabled
for this SoC.

Fixes: 9bd95ac8 ("pinctrl: renesas: rzg2l: Add support for RZ/V2H SoC")
Reported-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241010132726.702658-1-prabhakar.mahadev-lad.rj@bp.renesas.com


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