pinctrl: rockchip: Add rk3576 pinctrl support

Add support for the 5 rk3576 GPIO banks.

Signed-off-by: Steven Liu <steven.liu@rock-chips.com>
Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Acked-by: Dragan Simic <dsimic@manjaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/20240822195706.920567-5-detlev.casanova@collabora.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>