Public bug reported:

Per current NV and intel GPU driver, if we load nvidia.ko only, we can
do display on intel GPU and leave the NV to deep learning for a graphic
workstation.

I proposed to add a mode might call "intel+nv_cuda" for this mode.

Test procedure:

1. install the new package on a platform with both intel and NV graphic card.
2. $ sudo prime-select intel+nv_cuda; sudo reboot
3. $ nvidia-smi # it will show the nvidia GPU status and we will found that no 
GUI process use any NV GPU memory.

** Affects: nvidia-prime (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1824282

Title:
  Add a mode that load nvidia.ko only so that we display on intel and do
  cuda deep learning in NV GPU

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