Add ecobee Smart Premium thermostat (#76365)
Add ecobee Smart Premium thermostat (#76365)

Update const.py

Add device model constant for ecobee Smart Premium thermostat
w1ll1am23/home-assistant,nkgilley/home-assistant,w1ll1am23/home-assistant,mezz64/home-assistant,nkgilley/home-assistant,mezz64/home-assistant