system_tables: implement load_host_id
system_tables: implement load_host_id

A simple translation from the original code.

Signed-off-by: Glauber Costa <f8b79557d19b40666ebe336545a0b6178af65685@cloudius-systems.com>

capturePointer/scylla,asias/scylla,phonkee/scylla,duarten/scylla,respu/scylla,justintung/scylla,asias/scylla,stamhe/scylla,linearregression/scylla,scylladb/scylla,victorbriz/scylla,rentongzhang/scylla,shaunstanislaus/scylla,kjniemi/scylla,avikivity/scylla,glommer/scylla,shaunstanislaus/scylla,kjniemi/scylla,tempbottle/scylla,wildinto/scylla,rluta/scylla,acbellini/scylla,scylladb/scylla,bowlofstew/scylla,senseb/scylla,tempbottle/scylla,raphaelsc/scylla,avikivity/scylla,raphaelsc/scylla,justintung/scylla,gwicke/scylla,wildinto/scylla,justintung/scylla,rluta/scylla,bowlofstew/scylla,acbellini/scylla,guiquanz/scylla,glommer/scylla,stamhe/scylla,duarten/scylla,asias/scylla,capturePointer/scylla,dwdm/scylla,glommer/scylla,senseb/scylla,phonkee/scylla,aruanruan/scylla,raphaelsc/scylla,guiquanz/scylla,respu/scylla,dwdm/scylla,avikivity/scylla,senseb/scylla,eklitzke/scylla,gwicke/scylla,capturePointer/scylla,guiquanz/scylla,eklitzke/scylla,gwicke/scylla,rentongzhang/scylla,phonkee/scylla,bowlofstew/scylla,kangkot/scylla,aruanruan/scylla,scylladb/scylla,kangkot/scylla,acbellini/scylla,victorbriz/scylla,rentongzhang/scylla,scylladb/scylla,respu/scylla,rluta/scylla,kjniemi/scylla,linearregression/scylla,tempbottle/scylla,linearregression/scylla,duarten/scylla,eklitzke/scylla,aruanruan/scylla,stamhe/scylla,wildinto/scylla,kangkot/scylla,dwdm/scylla,shaunstanislaus/scylla,victorbriz/scylla