[Letux-kernel] PyraOS: removing second battery node

[H. Nikolaus Schaller]

If there is a separate pyra_defconfig it suffices to replace

CONFIG_GENERIC_ADC_BATTERY=m

by

#CONFIG_GENERIC_ADC_BATTERY is not configured

This removes the driver from the list of modules and it will
not be built and create the duplicate entry in /sys/class/power_supply

If it is to be removed/suppressed without recompiling the kernel:

1. rmmod generic_adc_battery
2. or write a blacklist entry for /etc/modprobe.d
echo blacklist generic_adc_battery >/etc/modprobe.d/gab-blacklist.conf
3. or remove the kernel module and run depmod -a once:
rm /lib/modules/4.19.*-letux+/kernel/drivers/power/supply/generic-adc-battery.ko

Hope one of these ideas works well. At the moment I'd recommend #2 since it
is connected to the PyraOS rootfs config and just a static file and not a
shell command to be run during boot.

BR,
Nikolaus