Update config files: re-enable twofish crypto support
    
    Software twofish crypto support was disabled in several architectures
    since openSUSE 10.3. For i386 and x86_64 it was on purpose, because
    hardware-accelerated alternatives exist. However for all other
    architectures it was by accident.
    
    Re-enable software twofish crypto support in all configuration files,
    to guarantee that at least one implementation is always available,
    (bnc#871325).