Decipher Gone4Dirt changes #769

Job	Run time
build (base)	2m 36s
build-gcc-heli	2m 29s
build (clang)	3m 2s
autotest-heli (sitltest-heli)	11m 36s
autotest (sitltest-copter-tests1a)	11m 47s
autotest (sitltest-copter-tests1b)	13m 40s
autotest (sitltest-copter-tests1c)	12m 25s
autotest (sitltest-copter-tests1d)	11m 53s
autotest (sitltest-copter-tests1e)	13m 43s
autotest (sitltest-copter-tests2a)	13m 57s
autotest (sitltest-copter-tests2b)	23m 26s
	2h 0m 34s

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