tcp: report foreign FINs to the upper layer
tcp: report foreign FINs to the upper layer

This lets the caller know there is no more data.

linearregression/scylla,stamhe/scylla,bowlofstew/scylla,tempbottle/seastar,jonathanleang/seastar,justintung/scylla,kjniemi/scylla,asias/scylla,scylladb/scylla,jonathanleang/seastar,mixja/seastar,shaunstanislaus/scylla,shyamalschandra/seastar,bowlofstew/seastar,dwdm/scylla,aruanruan/scylla,asias/scylla,capturePointer/scylla,hongliangzhao/seastar,wildinto/scylla,senseb/scylla,avikivity/seastar,bowlofstew/seastar,jonathanleang/seastar,shaunstanislaus/scylla,victorbriz/scylla,ducthangho/imdb,koolhazz/seastar,duarten/scylla,respu/scylla,justintung/scylla,raphaelsc/scylla,respu/scylla,avikivity/scylla,hongliangzhao/seastar,rentongzhang/scylla,tempbottle/seastar,aruanruan/scylla,flashbuckets/seastar,victorbriz/scylla,asias/scylla,scylladb/scylla,linearregression/scylla,anzihenry/seastar,hongliangzhao/seastar,victorbriz/scylla,flashbuckets/seastar,slivne/seastar,scylladb/seastar,glommer/scylla,acbellini/seastar,mixja/seastar,sjperkins/seastar,sjperkins/seastar,dreamsxin/seastar,printedheart/seastar,glommer/scylla,scylladb/scylla,stamhe/scylla,gwicke/scylla,anzihenry/seastar,aruanruan/scylla,dwdm/scylla,acbellini/scylla,tempbottle/scylla,wildinto/seastar,guiquanz/scylla,kangkot/scylla,avikivity/scylla,gwicke/scylla,duarten/scylla,rentongzhang/scylla,slivne/seastar,wildinto/scylla,wildinto/seastar,cloudius-systems/seastar,dreamsxin/seastar,ducthangho/imdb,xtao/seastar,justintung/scylla,bzero/seastar,scylladb/seastar,mixja/seastar,chunshengster/seastar,bowlofstew/seastar,stamhe/seastar,raphaelsc/seastar,senseb/scylla,avikivity/seastar,wildinto/scylla,gwicke/scylla,tempbottle/scylla,capturePointer/scylla,eklitzke/scylla,eklitzke/scylla,linearregression/seastar,acbellini/seastar,guiquanz/scylla,kjniemi/seastar,duarten/scylla,chunshengster/seastar,rluta/scylla,stamhe/seastar,avikivity/scylla,raphaelsc/scylla,kjniemi/scylla,bowlofstew/scylla,stamhe/seastar,cloudius-systems/seastar,koolhazz/seastar,raphaelsc/seastar,leejir/seastar,joerg84/seastar,rluta/scylla,phonkee/scylla,rluta/scylla,shyamalschandra/seastar,stamhe/scylla,norcimo5/seastar,rentongzhang/scylla,linearregression/scylla,dwdm/seastar,flashbuckets/seastar,cloudius-systems/seastar,xtao/seastar,tempbottle/scylla,scylladb/scylla,linearregression/seastar,scylladb/scylla-seastar,shyamalschandra/seastar,guiquanz/scylla,senseb/scylla,kangkot/scylla,linearregression/seastar,norcimo5/seastar,acbellini/scylla,syuu1228/seastar,ducthangho/imdb,acbellini/scylla,joerg84/seastar,chunshengster/seastar,avikivity/seastar,koolhazz/seastar,norcimo5/seastar,anzihenry/seastar,slivne/seastar,raphaelsc/seastar,shaunstanislaus/scylla,glommer/scylla,bowlofstew/scylla,bzero/seastar,tempbottle/seastar,syuu1228/seastar,joerg84/seastar,scylladb/seastar,dwdm/seastar,leejir/seastar,phonkee/scylla,kangkot/scylla,kjniemi/scylla,phonkee/scylla,leejir/seastar,syuu1228/seastar,acbellini/seastar,sjperkins/seastar,kjniemi/seastar,dwdm/seastar,xtao/seastar,capturePointer/scylla,wildinto/seastar,respu/scylla,raphaelsc/scylla,kjniemi/seastar,eklitzke/scylla,scylladb/scylla-seastar,printedheart/seastar,dwdm/scylla,dreamsxin/seastar,bzero/seastar,printedheart/seastar,scylladb/scylla-seastar