pinctrl: renesas: rzg2l: Add support for RZ/V2N SoC

pinctrl: renesas: rzg2l: Add support for RZ/V2N SoC

Add pinctrl support for the Renesas RZ/V2N SoC by reusing the existing
RZ/V2H(P) pin configuration data. The PFC block is nearly identical, with
the only difference being the absence of `PCIE1_RSTOUTB` on RZ/V2N.

To handle this, the rzv2h_dedicated_pins array is refactored into a common
and pcie1 subset. This enables reuse of the common portion across both
SoCs, while excluding PCIE1_RSTOUTB for RZ/V2N.

This change allows the pinctrl-rzg2l driver to support RZ/V2N without
duplicating large parts of the RZ/V2H configuration.

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/20250415130854.242227-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>