leds: lp55xx: Convert LED class registration to devm_*

Convert the LED class registration calls to the LED devm_*
registration calls.

Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
6 files changed