Test to verify cgroup socket filter

Add a base test for cgroup socket filter to check the cgroup socket eBPF
program can actually block socket creation for INET socket. This feature
will be used in 4.14 and above kernel to replace paranoid network.

Test: ./bpf_test.py
Bug: 111560739
Change-Id: I10f5c0c6847ec033cf757b8ce9dfa1a6b80c50fb
3 files changed
tree: ec5f509328208080e96130c20db40f544ff82f23
  1. devicetree/
  2. net/
  3. Android.bp