Mismatch between function declaration and definition

```cpp
void sc25519_window4(signed char r[85], const sc25519 *s);
```

https://github.com/monero-project/supercop/blob/monero/crypto_sign/ed25519/amd64-64-24k/sc25519.h#L58

```cpp
void sc25519_window4(signed char r[64], const sc25519 *s)
```

https://github.com/monero-project/supercop/blob/monero/crypto_sign/ed25519/amd64-64-24k/sc25519_window4.c#L3