Add ASSERT_STORAGE_SIZE macro #27680

Job	Run time
build (chibios, Durandal)	24m 22s
build (chibios, MatekF405)	21m 34s
build (chibios, KakuteF7)	19m 25s
build (chibios, MatekH743-bdshot)	24m 28s
build (chibios, Pixhawk1-1M)	21m 36s
build (chibios, MatekF405-CAN)	1m 52s
build (chibios, DrotekP3Pro)	1m 34s
build (chibios, Hitec-Airspeed)	4m 47s
build (chibios, f103-GPS)	2m 4s
build (disco, armhf)	6m 7s
	2h 7m 49s

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