How to automatically set a CPU governor on boot?

There are apps that can accomplish this task (e.g. "Kernel Adiutor" and others), however they in turn require other apps that can grant them root access to begin with, which is a lot of modification for this simple task. In any regular Linux desktop system, setting the governor at every boot would be accomplished by creating a script, for example in rc.local or a systemd-oneshot, that simply calls echo "" > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor after each system start. What would be the Android equivalent of this solution? Is there any way to automatically set the CPU governor without installing any apps?