go: broken for x-compile
libtool.cross: fix for sdl-image

sdl-image uses a broken link command with $CC replaced with just "gcc".
since we added support for C++ to libtool, it behaves differently due to
the existance of "tags"; without them it swallows "gcc" and just silently
replaces it with the proper $CC. rather than hunting down the bug in
sdl-image's automake-generated mess, we fix libtool so it behaves as
expected by the author.
x11-font-dejavu: fix perms
remove sshd key-generating packages

the keygen step is part of the service scripts so its no longer needed.
libressl: bump to 2.0.5
netsurf: bump to 3.2