All of our 3DS changes have been upstreamed. If in the future we need
to use the fork again, we can edit the top-level Cargo.toml and adjust
the patches (replace upstream with fork).
We don't want duplicate ctru-sys crates in the dependency graph. Same
for libc. We can patch them here to avoid any issues.
Now that we don't have duplicate ctru-sys crates, we can add back the
links field. This field is important because it warns us when there are
two crates linking to the same library (ex. duplicate ctru-sys crates).
Mark Drobnak