pinctrl: ingenic: Use devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() instead of platform_get_resource +
devm_ioremap_resource.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200106232711.559727-6-paul@crapouillou.net


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