Make bench_gemm compatible with 3.2
Make bench_gemm compatible with 3.2

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