modem_diagnostics: add rules for getting battery info am: 94660a5a3d am: 7e113d8961 am: d5ae7f574d

Original change: https://android-review.googlesource.com/c/device/google/redbull-sepolicy/+/1881159

Change-Id: I72d085ebb85728eb1b435ea7f648d68f2bc38681