Add ASSERT_STORAGE_SIZE macro #26977

Job	Run time
build (chibios, Durandal)	24m 10s
build (chibios, MatekF405)	20m 26s
build (chibios, KakuteF7)	20m 18s
build (chibios, MatekH743-bdshot)	7m 56s
build (chibios, Pixhawk1-1M)	19m 56s
build (chibios, MatekF405-CAN)	1m 51s
build (chibios, DrotekP3Pro)	1m 35s
build (chibios, Hitec-Airspeed)	4m 48s
build (chibios, f103-GPS)	4m 49s
build (disco, armhf)	5m 56s
	1h 51m 45s

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