Add physical activity recognition permission and group

At the moment gmscore provides an install time permission to detect physcial activity,
com.google.android.gms.permission.ACTIVITY_RECOGNITION. We now add a runtime
permission in framework for better activity recognition transparency.

TODO: Upload activity recognition permission group icon

Test: Permission and group show up in adb shell pm list permissions
Bug: 111411340

Change-Id: I22c4fd7985780bc21ddd8ab435de06f06eec49ba