pinctrl: ocelot: combine get resource and ioremap into single call

Simple cleanup to make two function calls only one.

Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Link: https://lore.kernel.org/r/20211119195928.2498441-2-colin.foster@in-advantage.com


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