Merge "[MS10.2] Move multiplySafeByRational to NetworkStatsUtils" am: c6f89d4832 am: c407c3315f am: 2840adf26f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1919247

Change-Id: Ic776001582760a04efb631616c130bf4260e4b9a