Android S V2 Beta 3
Add more of the libnl-route API for nsjail am: d51bf7e713 am: 3b418d01f1 am: 045e63678e

Original change: https://android-review.googlesource.com/c/platform/external/libnl/+/1813629

Change-Id: Ia3e507dd628a5b7de9cedf01ee55151a5b2ea8b3