feat(radio): discover SBUS trainer availability #8840

Job	Run time
Run tests (x9dp2019)	2m 36s
Run tests (tx16s)	5m 20s
Run tests (nv14)	4m 56s
Run tests (el18)	5m 2s
Run tests (pl18)	4m 58s
Run tests (pl18ev)	4m 56s
Run tests (t12)	2m 38s
Run tests (t16)	4m 59s
Run tests (t18)	5m 14s
Run tests (t8)	2m 32s
Run tests (tlite)	2m 48s
Run tests (t20)	2m 47s
Run tests (tx12)	2m 50s
Run tests (x10)	5m 19s
Run tests (x12s)	5m 8s
Run tests (x7)	2m 45s
Run tests (x9d)	2m 36s
Run tests (x9dp)	2m 45s
Run tests (x9e)	2m 35s
Run tests (x9lite)	2m 35s
Run tests (x9lites)	2m 51s
Run tests (xlite)	2m 35s
Run tests (xlites)	2m 49s
Run builds (nv14;el18)	4m 48s
Run builds (pl18;pl18ev)	5m 3s
Run builds (t12)	1m 45s
Run builds (t16;t18)	5m 17s
Run builds (t8;zorro;pocket;mt12;commando8)	4m 7s
Run builds (tlite;tpro;tprov2;lr3pro)	3m 39s
Run builds (t20)	1m 40s
Run builds (tx12;tx12mk2;boxer)	2m 49s
Run builds (tx16s)	2m 55s
Run builds (x10;x10-access)	4m 58s
Run builds (x12s)	2m 52s
Run builds (x7;x7-access)	2m 18s
Run builds (x9d;x9dp;x9dp2019)	2m 47s
Run builds (x9e;x9e-hall)	2m 20s
Run builds (x9lite;x9lites)	2m 7s
Run builds (xlite;xlites)	2m 6s
	2h 15m 5s

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