Skip bpf offload if upstream interface is VCN

Bpf offload do not support VCN network yet, don't start bpf offload
if the interface is ipsec*.

Bug: 191178945
Test: atest TetheringTests
Original-Change: https://android-review.googlesource.com/1764307
Merged-In: I1ad8cededddec42f45b08aaa31d583c548d105f0
Change-Id: I1ad8cededddec42f45b08aaa31d583c548d105f0
5 files changed