Merge "Revert "Revert "Add CTS tests for exclude VPN routes APIs""" am: b0818dd720 am: 411a8bc405

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1931760

Change-Id: I50baf2b7a143909b08ecaad9a8eb3166f58cbcc8