symbiotic: move prepare before linking undefined functions
symbiotic: move prepare before linking undefined functions

in prepare we delete definitions of __VERIFIER_* functions,
so that we can provide ours definitions, so if prepare is after
the linking, we remove what we linked

Signed-off-by: Marek Chalupa <a05df156a69ad59faa9af9b666ef78009594c145@gmail.com>

staticafi/symbiotic,staticafi/symbiotic,staticafi/symbiotic,staticafi/symbiotic