iio: light: al3320a: Fix an error handling path in al3320a_probe()

If regmap_write() fails in al3320a_init(), al3320a_set_pwr_off is
not called.

In order to avoid such a situation, move the devm_add_action_or_reset()
which calls al3320a_set_pwr_off right after a successful
al3320a_set_pwr_on.

Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://patch.msgid.link/20250402-al3010-iio-regmap-v4-3-d189bea87261@ixit.cz


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>