init: add permission for charging_policy access am: fb8fb609b0 am: 559d0c1057

Original change: https://android-review.googlesource.com/c/device/google/gs101/+/2418901

Change-Id: I665f747c6f8b09c244a05aa9d3d64e72356a2dba
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>