Merge changes from topic "nf-conntrack-for-tether-offload" am: eda2f56ad5 am: 0eac88d0bb

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/1471589

Change-Id: Idbd52dc3f0426af61138a5b9066f5803e3774961