missing atomicMin/Max for signed long long in HIP (available in CUDA)

[Epliz]

Hi,

As pointed out at ROCm/hipamd#65 , there is not version of the atomicMin/Max methods for signed long long arguments.
These variants are available in CUDA as seen at https://docs.nvidia.com/cuda/cuda-c-programming-guide/#atomicmin (as well as in OpenCL on AMD GPUs).
Therefore it seems like they should be added.

Best regards,
Epliz

[jatinx]

Thanks for reporting it. Will look at it.

[cjatin]

Fixed via: be02e1e