Can we please follow the same pattern for both vec256_quint and vec512_quint   (I understand that size() is constexpr and compiler should be able to optimize out if when invoked with default parameters, but older compilers might not be as smart)  ```suggestion    return Vectorized<c10::quint8>(ptr)l    }    static Vectorized<c10::quint8> loadu(const void* ptr, int64_t count) {  ```