add board canzero #32528

Job	Run time
build (base)	2m 0s
build-gcc-heli	2m 34s
build (clang)	1m 57s
autotest (sitltest-copter-tests1a)	11m 45s
autotest (sitltest-copter-tests1b)	13m 38s
autotest (sitltest-copter-tests1c)	15m 59s
autotest (sitltest-copter-tests1d)	20m 29s
autotest (sitltest-copter-tests1e)	13m 24s
autotest (sitltest-copter-tests2a)	13m 23s
autotest (sitltest-copter-tests2b)	34m 40s
autotest-heli (sitltest-heli)	10m 58s
	2h 20m 47s

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