init: add permission for charging_policy access am: fb8fb609b0 am: 559d0c1057 am: 86dcb345b3

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

Change-Id: Ib81f20d069166a6f6c1089e39e68c7ca3e0aa234
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>