revert to using sysfs_batteryinfo for adaptive charging sysfs files

Reduces chances of breaking anything else that happens to be reading all
of battery sysfs entries.

Fixes: 162702119
Bug: 150239363
Test: verified adaptive charging use cases on Coral
Signed-off-by: Jeffrey Carlyle <jcarlyle@google.com>
Change-Id: Iea70866f1344ae076415edcbaf7ed4ff18b7c4b2
3 files changed