message: es9257: updated min/max pulse values for C driver
diff: #include "upm.h"
  #include "mraa/pwm.h"
  -#define ES9257_MIN_PULSE_WIDTH 600
  -#define ES9257_MAX_PULSE_WIDTH 2200
  +#define ES9257_MIN_PULSE_WIDTH 475
  +#define ES9257_MAX_PULSE_WIDTH 2100
  #define ES9257_PERIOD 20000
  #define ES9257_MAX_ANGLE 180.0
  @@ -62,9 +62,6 @@ typedef struct _es9257_context {
  * @param pin Servo pin number
  * @param minPulseWidth Minimum pulse width, in microseconds
  * @param maxPulseWidth Maximum pulse width, in microseconds
  - * @param waitAndDisablePwm If 1, PWM is enabled only during the
  - * setAngle() execution for a period of 1 second, and then turned back
  - * off. If 0, PWM remains on afterward.
  */
  