fix(lua): re-implement luaSetSerialBaudrate #8814

Job	Run time
Run tests (x9dp2019)	2m 42s
Run tests (tx16s)	5m 12s
Run tests (nv14)	4m 51s
Run tests (el18)	5m 4s
Run tests (pl18)	4m 55s
Run tests (pl18ev)	5m 3s
Run tests (t12)	2m 45s
Run tests (t16)	5m 1s
Run tests (t18)	5m 3s
Run tests (t8)	2m 42s
Run tests (tlite)	2m 45s
Run tests (t20)	2m 36s
Run tests (tx12)	2m 42s
Run tests (x10)	5m 15s
Run tests (x12s)	5m 4s
Run tests (x7)	2m 36s
Run tests (x9d)	2m 42s
Run tests (x9dp)	2m 46s
Run tests (x9e)	2m 48s
Run tests (x9lite)	2m 48s
Run tests (x9lites)	2m 54s
Run tests (xlite)	2m 33s
Run tests (xlites)	2m 53s
Run builds (nv14;el18)	4m 54s
Run builds (pl18;pl18ev)	4m 45s
Run builds (t12)	1m 36s
Run builds (t16;t18)	4m 53s
Run builds (t8;zorro;pocket;mt12;commando8)	4m 13s
Run builds (tlite;tpro;tprov2;lr3pro)	3m 34s
Run builds (t20)	1m 40s
Run builds (tx12;tx12mk2;boxer)	2m 49s
Run builds (tx16s)	2m 53s
Run builds (x10;x10-access)	4m 55s
Run builds (x12s)	2m 49s
Run builds (x7;x7-access)	2m 6s
Run builds (x9d;x9dp;x9dp2019)	2m 48s
Run builds (x9e;x9e-hall)	2m 10s
Run builds (x9lite;x9lites)	2m 17s
Run builds (xlite;xlites)	2m 18s
	2h 14m 20s

Provide feedback