HWDEF:Add SDMODELH7V2 backport to 4.5 #30357

Job	Run time
build (chibios, Durandal)	17m 30s
build (chibios, MatekF405)	15m 8s
build (chibios, KakuteF7)	13m 33s
build (chibios, MatekH743-bdshot)	16m 43s
build (chibios, Pixhawk1-1M)	15m 23s
build (chibios, MatekF405-CAN)	1m 50s
build (chibios, DrotekP3Pro)	1m 56s
build (chibios, Hitec-Airspeed)	4m 13s
build (chibios, f103-GPS)	3m 34s
build (disco, armhf)	14m 23s
	1h 44m 13s

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