wire bpf_base_test into netd_updatable_unit_test

The 3 pre-existing //system/netd tests are:
  TEST_F(BpfBasicTest, TestCgroupMounted)
  TEST_F(BpfBasicTest, TestTagSocket)
  TEST_F(BpfBasicTest, TestCloseSocketWithoutUntag)
which are directly related to BpfHandler.cpp implementation,
as it implements:
  Status BpfHandler::init(const char* cg2_path)
  BpfHandler::tagSocket()
  BpfHandler::untagSocket()

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I1c01ae90904faaea54b427495c7a5deab8b1b900
2 files changed