server kex: Fix server side compression typo
server kex: Fix server side compression typo

The original code had a typo (COMP was CRYPT). This fixes the zlib compression
method.

Signed-off-by: Nicolas Viennot <418d940643b1975d62234ee01246ad4b58904184@viennot.biz>
Reviewed-by: Andreas Schneider <5be00ddc76278cf6077f5047ca3384a88460c671@cryptomilk.org>

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