fixup! arch/arm64: Add Revision, Serial, Model to cpuinfo #942

Job	Run time
build (bcm2835, arm, bcm2835_defconfig, kernel)	16m 7s
build (arm64, arm64, defconfig, kernel8)	47m 28s
build (bcmrpi, arm, bcmrpi_defconfig, kernel)	46m 24s
build (bcm2709, arm, bcm2709_defconfig, kernel7)	50m 38s
build (bcm2711, arm, bcm2711_defconfig, kernel7l)	44m 37s
build (bcm2711_arm64, arm64, bcm2711_defconfig, kernel8)	1h 13m 18s
build (bcm2712, arm64, bcm2712_defconfig, kernel_2712)	1h 6m 20s
	5h 44m 52s

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