Merge "Setup permissions for SDK sandbox UIDs." am: b643f2a356 am: b0c539a948 am: b8e6406b91

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2020099

Change-Id: I541015a49ec6c929794eab85f5e8b1d703a1a4f1