pwm: Drop changes related to pwm_config() compared to mainline

pwm_config() isn't recommended to be used any more and (since the
previous commit) the vendor changes don't introduce any new user. So
drop the changes introduced in commit 2a1b16e ("pwm: Convert period
and duty cycle to u64").

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>

Author: ukleinek

include/linux/pwm.h

@@ -325,8 +325,8 @@ int pwm_adjust_config(struct pwm_device *pwm);
  *
  * Returns: 0 on success or a negative error code on failure.
  */
-static inline int pwm_config(struct pwm_device *pwm, u64 duty_ns,
-			     u64 period_ns)
+static inline int pwm_config(struct pwm_device *pwm, int duty_ns,
+			     int period_ns)
 {
 	struct pwm_state state;
 
@@ -436,8 +436,8 @@ static inline int pwm_adjust_config(struct pwm_device *pwm)
 	return -ENOTSUPP;
 }
 
-static inline int pwm_config(struct pwm_device *pwm, u64 duty_ns,
-			     u64 period_ns)
+static inline int pwm_config(struct pwm_device *pwm, int duty_ns,
+			     int period_ns)
 {
 	might_sleep();
 	return -EINVAL;