dpdk: First proper offload features initialization
dpdk: First proper offload features initialization

 - Query the port for its caps.
 - Properly adjust the queue numbers according to the caps.
 - Enable RSS only if the final queues number is greater than 1.
 - Enable Rx VLAN stripping.

Signed-off-by: Vlad Zolotarov <976c0f8d0852ed6439ad273880b400a75a7c41d0@cloudius-systems.com>

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