Rover: 4.5.4 release notes #6

Job	Run time
build (base)	7m 5s
build-gcc-heli	6m 50s
build (clang)	9m 6s
autotest-heli (sitltest-heli)	13m 53s
autotest (sitltest-copter-tests1a)	11m 59s
autotest (sitltest-copter-tests1b)	13m 57s
autotest (sitltest-copter-tests1c)	15m 37s
autotest (sitltest-copter-tests1d)	12m 22s
autotest (sitltest-copter-tests1e)	13m 5s
autotest (sitltest-copter-tests2a)	13m 50s
autotest (sitltest-copter-tests2b)	32m 13s
	2h 29m 57s

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