pki: Add ecdsa support for signature_from_blob.
pki: Add ecdsa support for signature_from_blob.

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