Add macro to convert motor speed from percentage
Add macro to convert motor speed from percentage

MOTOR_SPEED_PERCENTAGE converts a percentage to the current PWM pulse width

zegervdv/STM-Quadcopter,zegervdv/Quadcopter,zegervdv/STM-Quadcopter,zegervdv/STM-Quadcopter,zegervdv/Quadcopter,zegervdv/STM-Quadcopter,zegervdv/Quadcopter,zegervdv/Quadcopter