neonvm: introduce CPU sysfs state scaling flow based on the vmSpec.cpuScalingMode #3804

Job	Run time
get-tag	1s
build-test-vm / tags	1s
build-images / tags	1s
build-images / vm-kernel / setup-build-vm-kernel-image	4s
build-test-vm / build	3m 56s
build-images / vm-kernel / build-vm-kernel-image	22s
build-images / build	1m 55s
e2e-tests (k3d)	10m 48s
	17m 8s

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