Set servo status

Before enabling the robot, we need to call NRC_SetServoReadyStatus(1) to switch the servo to the ready status. SetServoReadyStatus() is defined in nrcAPI.h as follows:

/**
 * @brief Switch servo ready status
 * @param status Optional parameter values:
 *  -    0  Servo stop
 *  -    1  Servo ready
 */
int NRC_SetServoReadyStatus(int status);