kex: Fix simpledes with gcrypt.
kex: Fix simpledes with gcrypt.

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