Multi Channel settings doesn’t work 
### What issue do you have? Please be as thorough and explicit as possible.

I would like to configure a multi Channel device (sonoff dualR3) as a faucet. When i configure it in the user interface, it appears correctly with « showAs » and « tap » in the script but after homebridge restart, the device is initialised with options « showAsmotor »:  « blind ».  


### Details of your setup.
* Do you use (1) Homebridge UI-X (2) Homebridge CLI or (3) HOOBS? 

(1)

* Which version of Homebridge/HOOBS do you have?

1.4.1

* Which platform do you run Homebridge/HOOBS on (e.g. Raspberry Pi/Windows/HOOBS Box)? Please also mention your version of Node.js/NPM if known.

Raspberry pi4

* Which version of this plugin (homebridge-ewelink) do you have? Has the issue started since upgrading from a previous version?

9.0.1
I just received and configured it today so i don’t know if previous version can work 

* Which eWeLink devices do you have that are causing issues? Please include product models if applicable.

Sonoff DUALR3
