gpio: max732x: use i2c_new_dummy_device()

We now have a resource managed version of i2c_new_dummy_device() that
also returns an actual error code instead of a NULL-pointer. Use it
in the max732x GPIO driver and simplify code in the process.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
1 file changed