[Bug] shelly 2.5 is discovered as unknown device
**Describe the bug**
The shelly 2.5 is discovered as unknown device

**Log output**
Shelly  unknown device  SHSW-25 (device-id) at ip-adress discovered

**Environment:**
 - Shelly device: Shelly 2.5
 - Firmware : 20211109-125214/v1.11.7-g682a0db 
 - used as relay
 - Plugin version: 0.19.1
 - Device running: IOS APP Hub for Homekit  V1.8
