[RFE] EC/CUDA: using cuStreamMemOps

[marsaev]

Since CUDA 11.7 new cudaStreamOps_v2 introduced which doesn't require kernel module parameter to be set (https://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__MEMOP.html#group__CUDA__MEMOP). This lower requirements on using these APIs.
As far as i understand this will allow lower number of kernels launched (i.e. executor_start or executor_shutdown_ack).

Also, as far as i understand from sources, STREAM_TASK_MODE=driver is not really fully supported, so it would be great to see those API used is some way or another.

Thanks,