[automerger skipped] Merge "Stop reducing RA advertised ipv6 mtu by 16 - not...

[automerger skipped] Merge "Stop reducing RA advertised ipv6 mtu by 16 - not needed." am: 01dab1a0 am: afbf7781 -s ours am: 17a80f62 -s ours am: f06e6f23 -s ours

am skip reason: Change-Id I76a75a16fa27b47d78816b2f9379ef4bb68beb00 with SHA-1 7ed764dc is in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1322377

Change-Id: If508f4b0f7ad5aae9326d6aed13355a1112f54bb