pwm: Remove gratuitous blank line

Commit 5ec803ed ("pwm: Add core infrastructure to allow atomic
updates") introduced this double blank line by mistake.
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>

include/linux/pwm.h

@@ -408,7 +408,6 @@ static inline void pwm_disable(struct pwm_device *pwm)
 	pwm_apply_state(pwm, &state);
 }
 
-
 /* PWM provider APIs */
 int pwm_set_chip_data(struct pwm_device *pwm, void *data);
 void *pwm_get_chip_data(struct pwm_device *pwm);