feat: Use CoreOS Kernel #707

Job	Run time
build / image (main, aurora, 40)	7m 11s
build / image (main, aurora-dx, 40)	9m 48s
build / image (nvidia, aurora, 40)	6m 33s
build / image (nvidia, aurora-dx, 40)	10m 58s
build / image (asus, aurora, 40)	7m 27s
build / image (asus, aurora-dx, 40)	9m 49s
build / image (asus-nvidia, aurora, 40)	7m 45s
build / image (asus-nvidia, aurora-dx, 40)	10m 48s
build / image (surface, aurora, 40)	8m 27s
build / image (surface, aurora-dx, 40)	11m 40s
build / image (surface-nvidia, aurora, 40)	9m 4s
build / image (surface-nvidia, aurora-dx, 40)	10m 58s
build / image (main, aurora, 40, -coreos)	9m 24s
build / image (main, aurora-dx, 40, -coreos)	11m 46s
build / image (nvidia, aurora, 40, -coreos)	8m 39s
build / image (nvidia, aurora-dx, 40, -coreos)	13m 55s
build / Check all aurora 40 builds successful	2s
	2h 34m 14s

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