gpio: rcar: Use local variable gpio_chip in gpio_rcar_probe()
gpio: rcar: Use local variable gpio_chip in gpio_rcar_probe()

The existing variable gpio_chip already points to the gpiochip instance,
hence use it everywhere.

Signed-off-by: Geert Uytterhoeven <a1ff81395f7e6bf5b509fe9aab06bf3419493e1d@glider.be>
Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs