[Feature] Reporting TS0601 illumination the same way as TS0222 illumination
### Problem description

I have two devices, TS0601 (motion sensor with illumination sensor) and TS0222 (temperature, illumination and humidity sensor with display). Unfortunately only the TS0222 lux reading appears in HomeKit.

The TS0601 reports `illuminance` (Raw measured illuminance) and it's displayed in lux, but not `illuminance_lux`. As opposed to the TS0222 which reports both (but `illuminance` is actually a raw value without an unit).

### Suggested solution

That `illuminance` would be considered `illuminance_lux` in the case of sensors that just have a single `illuminance` value.

### Alternative solutions

_No response_

### Additional context / information

_No response_