fix the bug to cause some certain cases failing
fix the bug to cause some certain cases failing

ROCmSoftwarePlatform/rocFFT,tingxingdong/rocFFT-1,bragadeesh/rocFFT,tingxingdong/rocFFT-1,ROCmSoftwarePlatform/rocFFT,bragadeesh/rocFFT,bragadeesh/rocFFT,tingxingdong/rocFFT-1,ROCmSoftwarePlatform/rocFFT,ROCmSoftwarePlatform/rocFFT