[automerger skipped] Merge "Adjust TTL for ipv6 tethering" into rvc-dev am: d0355d7d40 -s ours

am skip reason: Change-Id I7f2696a642f96c6aafb5613b980bf5bcdd08bbda with SHA-1 aa8cecec81 is in history

Change-Id: I76feb39b69ebb2d45873807a878e4d6c364b0a9b