Dump the ND offload status and address table in bugreports.

Also, move NetworkDiagnostics between the two runs of getting the
wifi counters, so we can see the effect on the counters of
sending our probe packets.

Bug: 23661687
Change-Id: I3f81c003a35f50ac1cb8e77d0a8c73dae4fd91f3
1 file changed