I know they're completely different but Raspberry Pi's have the "HDMI_IGNORE_CEC_INIT" setting in their config.txt file, I guess we need something similar for Amlogic boxes so we can still use our TV remotes to control the box but don't control the box's powerstate with it. Is something like that already available perhaps? Are there HDMI-CEC config files somewhere that we can tinker with?
You can change that from the GUI, in Kodi 16 it's in Settings > System > Input Devices > Peripherals > CEC Adapter then choose if and when the device powers on and off, if the device pauses or not when switching sources, etc etc. I assume the setting is still in Kodi 17.