pinctrl: renesas: rzg2l: Suppress binding attributes

Suppress binding attributes for the rzg2l pinctrl driver, as it is an
essential block for Renesas SoCs.  Unbinding the driver leads to
warnings from __device_links_no_driver() and can eventually render the
system inaccessible.

Fixes: c4c4637eb5 ("pinctrl: renesas: Add RZ/G2L pin and gpio controller driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250215131235.228274-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/renesas/pinctrl-rzg2l.c

@@ -3403,6 +3403,7 @@ static struct platform_driver rzg2l_pinctrl_driver = {
 		.name = DRV_NAME,
 		.of_match_table = of_match_ptr(rzg2l_pinctrl_of_table),
 		.pm = pm_sleep_ptr(&rzg2l_pinctrl_pm_ops),
+		.suppress_bind_attrs = true,
 	},
 	.probe = rzg2l_pinctrl_probe,
 };