Trigger recipe relink when relibc changes
Currently the build system don't trigger a relink of all enabled recipes when the relibc submodule changes (new commit hash), this make the recipes use the old version of the relibc object and don't apply new fixes or improvements.
The proposal is to trigger a fast relink of Rust-written recipes (ideally only the relibc object) and clean + rebuild C/C++ written recipes when the relibc submodule changes the pinned commit hash.