tests: Fix pki test with gcrypt.
tests: Fix pki test with gcrypt.

sebadoom/libssh,robxu9/libssh,sebadoom/libssh,taikoo/libssh,DouglasHeriot/libssh,DouglasHeriot/libssh,robxu9/libssh,sebadoom/libssh,elastichosts/libssh,taikoo/libssh,nviennot/libssh,Distrotech/libssh,Distrotech/libssh,kedazo/libssh,mwgoldsmith/libssh,wangshawn/libssh,elastichosts/libssh,nviennot/libssh,mwgoldsmith/libssh,taikoo/libssh,Distrotech/libssh,sebadoom/libssh,mwgoldsmith/ssh,mwgoldsmith/libssh,DouglasHeriot/libssh,mwgoldsmith/ssh,kedazo/libssh,mwgoldsmith/ssh,mwgoldsmith/ssh,kedazo/libssh,wangshawn/libssh,wangshawn/libssh,Distrotech/libssh,pouete/libssh,robxu9/libssh,kedazo/libssh,robxu9/libssh,mwgoldsmith/libssh,nviennot/libssh,pouete/libssh,nviennot/libssh,pouete/libssh,elastichosts/libssh,wangshawn/libssh,taikoo/libssh,DouglasHeriot/libssh,pouete/libssh