at86rf230: use devm_gpio_request_one

This patch replace the gpio_request functions with devm_gpio_request_one
functions. Then we don't need to take care about freeing gpios.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed