Huawei LTE sensor unique id improvements (#25609)

* Convert sensor setup to async

* Improve sensor unique ids

* Save some indent levels, use f-string formatting

* Require getmac in tests

* Fix RouterData init in tests

* Make discovery_info optional in async_setup_platform signature

script/gen_requirements_all.py

@@ -73,6 +73,7 @@ TEST_REQUIREMENTS = (
     "georss_generic_client",
     "georss_ign_sismologia_client",
     "georss_qld_bushfire_alert_client",
+    "getmac",
     "google-api-python-client",
     "gTTS-token",
     "ha-ffmpeg",