ossl_ml_dsa_poly_ntt_mult
void ossl_ml_dsa_poly_ntt_mult(const POLY *lhs, const POLY *rhs, POLY *out);
ossl_ml_dsa_poly_ntt_mult(poly++, &s->poly[j], &product);
ossl_ml_dsa_poly_ntt_mult(lhs->poly + i, rhs, out->poly + i);