commit 132065d2694ec9e0ac9b857a76a22b1f1f251c44
author Chenbo Feng <fengc@google.com> Mon Mar 26 10:53:33 2018 -0700
committer Chenbo Feng <fengc@google.com> Thu Apr 12 16:49:49 2018 -0700
tree 455385012ce6e9df206b232e86adf187c54ffe2b
parent 64af7047b44c4802a300be0843501b56747d49f8

Add dump function for trafficController

Add a dumpsys helper function in trafficController to dump out the
information of the trafficController that is running on device. If
trafficController is running bpf programs, dump out all the program
location status and all the map content to dumpsys.

Test: dumpsys netd should trafficController information.
bug: 74411823
Merged-In: Ica83c11b6d1debb59f9c3a703d5b5cfc264844c4
Change-Id: Ica83c11b6d1debb59f9c3a703d5b5cfc264844c4
(cherry picked from aosp commit ef297179bb1611b011d6e0f55e5cb7366a76824a)