[miio] change deviceID to Xiaomi used string (#10951)

[miio] change deviceID to Xiaomi used string (#10951)

* [miio] change deviceID to Xiaomi used string

Change the deviceId from the current hexadecimal to the string used by
Xiaomi.
This is needed as we have some devices that have deviceIds that are
non-numeric, hence breaking the current logic.

Note: separately removing the upnp discovery as this has become
irrelevant with cloud discovery and devices supporting the udp regular
discovery.

Signed-off-by: Marcel Verpaalen <marcel@verpaalen.com>
* Update bundles/org.openhab.binding.miio/src/main/java/org/openhab/binding/miio/internal/handler/MiIoAbstractHandler.java

Signed-off-by: Fabian Wolter <github@fabian-wolter.de>
Co-authored-by: Fabian Wolter <github@fabian-wolter.de>