MIPS: alchemy: gpio: use new GPIO line value setter callbacks for the remaining chips

MIPS: alchemy: gpio: use new GPIO line value setter callbacks for the remaining chips

Previous commit missed two other places that need converting, it only
came out in tests on autobuilders now. Convert the rest of the driver.

Fixes: 68bdc4dc1130 ("MIPS: alchemy: gpio: use new line value setter callbacks")
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lore.kernel.org/r/20250727082442.13182-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>