Rename battery under /sys
Changing this to BAT0 from 8xlifepo4 as this code is shared with the pocket reform which doesn't use 8 lifepo4 cells
Tested on Pocket Reform:
grimmware@fmlr/pts/1:~/src/reform-tools/lpc [rename_battery 13]
> ls /sys/class/power_supply
8xlifepo4
grimmware@fmlr/pts/1:~/src/reform-tools/lpc [rename_battery 13]
> sudo rmmod reform2_lpc
[sudo] password for grimmware:
grimmware@fmlr/pts/1:~/src/reform-tools/lpc [rename_battery 13]
> ls /sys/class/power_supply
grimmware@fmlr/pts/1:~/src/reform-tools/lpc [rename_battery 13]
> sudo insmod ./reform2_lpc.ko
grimmware@fmlr/pts/1:~/src/reform-tools/lpc [rename_battery 13]
> ls /sys/class/power_supply
BAT0
grimmware@fmlr/pts/1:~/src/reform-tools/lpc [rename_battery 13]
> cat /sys/class/power_supply/BAT0/capacity
91
waybar appears to pick up the change automagically.