Detect USB Type C port controller and other chargers
Add string matches for USB Type C port controller and other chargers. These are e.g. exposed as
tcpc: /sys/devices/platform/soc@0/soc@0:bus@30800000/30a20000.i2c/i2c-0/0-0052/power_supply/tcpm-source-psy-0-0052
charger: /sys/devices/platform/soc@0/soc@0:bus@30800000/30a20000.i2c/i2c-0/0-006b/power_supply/bq25890-charger
on the Librem5 devkit.