known_hosts: Migrate ssh_write_knownhost() to new pki.
known_hosts: Migrate ssh_write_knownhost() to new pki.

mwgoldsmith/ssh,mwgoldsmith/ssh,nviennot/libssh,kedazo/libssh,sebadoom/libssh,wangshawn/libssh,kedazo/libssh,sebadoom/libssh,nviennot/libssh,pouete/libssh,pouete/libssh,kedazo/libssh,mwgoldsmith/libssh,jt1/honeypot-libssh,DouglasHeriot/libssh,mwgoldsmith/libssh,Distrotech/libssh,elastichosts/libssh,DouglasHeriot/libssh,DouglasHeriot/libssh,wangshawn/libssh,mwgoldsmith/ssh,bigcat26/libssh-mod,mwgoldsmith/ssh,Distrotech/libssh,elastichosts/libssh,robxu9/libssh,DouglasHeriot/libssh,jt1/honeypot-libssh,nviennot/libssh,mwgoldsmith/libssh,pouete/libssh,taikoo/libssh,taikoo/libssh,Distrotech/libssh,bigcat26/libssh-mod,wangshawn/libssh,jt1/honeypot-libssh,elastichosts/libssh,Distrotech/libssh,kedazo/libssh,pouete/libssh,sebadoom/libssh,nviennot/libssh,bigcat26/libssh-mod,mwgoldsmith/libssh,robxu9/libssh,taikoo/libssh,taikoo/libssh,bigcat26/libssh-mod,robxu9/libssh,jt1/honeypot-libssh,wangshawn/libssh,robxu9/libssh,sebadoom/libssh