sf0x.cpp: change baudrate to 115200 for SF11/C

src/drivers/distance_sensor/sf0x/sf0x.cpp

@@ -590,7 +590,19 @@ SF0X::cycle()
 		/* no parity, one stop bit */
 		uart_config.c_cflag &= ~(CSTOPB | PARENB);
 
-		unsigned speed = B9600;
+		/* if distance sensor model is SF11/C, then set baudrate 115200, else 9600 */
+		int hw_model;
+
+		param_get(param_find("SENS_EN_SF0X"), &hw_model);
+
+		unsigned speed;
+
+		if (hw_model == 5) {
+			speed = B115200;
+
+		} else {
+			speed = B9600;
+		}
 
 		/* set baud rate */
 		if ((termios_state = cfsetispeed(&uart_config, speed)) < 0) {