This adds support for RK816 to the exising rk805 pinctrl driver

It has a single pin which can be configured as input from a thermistor (for
instance in an attached battery) or as a gpio.
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240416161237.2500037-4-knaerzche@gmail.comSigned-off-by: Lee Jones <lee@kernel.org>