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

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

Change-Id: I84fec93eed2ce0d9eacdcf72d9b1f454cc3e9ebb