feat: Flysky gimbal support for X9D+2019 #7186

Job	Run time
Run tests (nv14)	6m 42s
Run tests (t12)	3m 1s
Run tests (t16)	6m 58s
Run tests (t18)	6m 48s
Run tests (t8)	2m 55s
Run tests (tlite)	3m 12s
Run tests (t20)	4m 8s
Run tests (tx12)	3m 25s
Run tests (tx16s)	8m 12s
Run tests (x10)	7m 9s
Run tests (x12s)	9m 51s
Run tests (x7)	3m 5s
Run tests (x9d)	2m 59s
Run tests (x9dp)	2m 52s
Run tests (x9dp2019)	3m 3s
Run tests (x9e)	3m 33s
Run tests (x9lite)	2m 55s
Run tests (x9lites)	3m 53s
Run tests (xlite)	3m 2s
Run tests (xlites)	3m 45s
Run builds (nv14)	4m 17s
Run builds (t12)	2m 5s
Run builds (t16)	4m 30s
Run builds (t18)	4m 16s
Run builds (t8;zorro;commando8)	4m 14s
Run builds (tlite;tlitef4;tpro;tprov2;lr3pro)	5m 42s
Run builds (t20)	2m 21s
Run builds (tx12;tx12mk2;boxer)	5m 11s
Run builds (tx16s)	4m 11s
Run builds (x10;x10-access)	7m 38s
Run builds (x12s)	4m 18s
Run builds (x7;x7-access)	2m 53s
Run builds (x9d;x9dp;x9dp2019)	4m 39s
Run builds (x9e;x9e-hall)	3m 2s
Run builds (x9lite;x9lites)	3m 29s
Run builds (xlite;xlites)	3m 28s
	2h 37m 42s

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