Switch to the generic pwm_bl driver instead of atmel-pwm-bl.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NHans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>