Add a missing header to cuda_common.h

[snnn]

Description

The following three lines are needed before including some cutlass header files, because cutlass uses "and"/"or" keywords. Generally it should not be a problem without this header, but nvcc is not strictly compliant to C++ standard.

#ifdef __cplusplus
#include <ciso646>
#endif

We didn't hit this problem because the above code exists in absl. We always include absl headers first. However, ABSL recently deleted them! abseil/abseil-cpp#1246

The cutlass dependency was introduced in #14343 , after we had abseil.