Updated the cxx11_meta test to work on the Eigen::array class when std::array isn't available.
Updated the cxx11_meta test to work on the Eigen::array class when std::array isn't available.

pasuka/eigen,pasuka/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,ritsu1228/eigen,pasuka/eigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,ritsu1228/eigen,ritsu1228/eigen,ritsu1228/eigen