Move BpfUtils -- add libtcutils

This CL is copying the "generic" parts of BpfUtils to
frameworks/libs/net/common. "Generic" meaning the parts that will be
used by both TcUtils in frameworks/libs/net/common and netd.

Bug: 202086915
Bug: 157552970
Test: atest TetheringTests
Change-Id: I9e780fc22e30d046f44953a8cac7687cb6c721c7
4 files changed
tree: 40159aea3fd19b9e8053a6837979f919f4538ca1
  1. staticlibs/