Merge "Merge "Stop reducing RA advertised ipv6 mtu by 16 - not needed." into...

Merge "Merge "Stop reducing RA advertised ipv6 mtu by 16 - not needed." into rvc-dev am: 14756a8c am: 27f4966f" into rvc-d1-dev-plus-aosp am: cdc45cc7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11620914

Change-Id: I3d84d2b62bda53240c70685dd972b9335f057ab3