Log NAT update descriptions when receiving netlink errors
Test: as follows
- built
- flashed
- booted
- runtest frameworks-net passes
- new logging messages observed
2017-10-06T13:15:25.190 - [OffloadController] ERROR Error updating NAT conntrack entry >TCP (192.168.43.222, 58054) -> (198.35.26.112, 443)<: android.system.ErrnoException: NetlinkErrorMessage{...
Bug:
29337859
Bug:
32163131
Bug:
64976634
Bug:
67396342
Merged-In: Ia1f0b97f89a9848a64099d01184fcbc2056a1b34
Merged-In: I426b0a0545d56aba7924c416799b37731e7e4b18
Change-Id: Ie05d4e6588d75f8a9798f40b68a317e24b3b5050
(cherry picked from commit
a5ae9056e74a13d394c4bb6c36f9255214ffb68b)