pinctrl: cy8c95x0: Drop atomicity on operations on push_pull

The push_pull member is always accessed under the mutex, hence
no need to use atomic operations on it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220916205450.86278-2-andriy.shevchenko@linux.intel.com


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