Support A+N platform

[Bin Li]

The 'Power Saving Mode' of Nvidia app should change to ATI when the integrated graphic is Advanced Micro Devices.

[Steps to reproduce]
1. Install the OEM image
2. Boot and log
3. 'Dash' -> 'Nvidia Settings'
4. Verify the 'PRIME Profiles'

[Expected result]
Nvidia (Performance Mode)
Nvidia On-Demand
AMD (Power Saving Mode)

u@Thor-P3-AMD-2:~$ prime-select
Usage: /usr/bin/prime-select nvidia|AMD|on-demand|query

[Actual result]
Nvidia (Performance Mode)
Nvidia On-Demand
Intel (Power Saving Mode)

u@Thor-P3-AMD-2:~$ prime-select
Usage: /usr/bin/prime-select nvidia|intel|on-demand|query

[Failure rate]
100%

[Other Information]
ubuntu 22.04
nvidia-prime 0.8.17.1
nvidia-settings 510.47.03-0ubuntu1
nvidia-driver 510.73.05-0ubuntu0.22.04.1

[jeremyszu (os369510)]

FWIK, there are many related packages need to modify together since it's similar to an interface change.

It'll be more reasonable if we target to Jammy+.

The power-saving mode in Jammy is almost useless (but the nvidia-340, 390 may still need it).
However, the 'power-saving' mode apply:
```
                "Section \"ServerLayout\"\n"
                " Identifier \"layout\"\n"
                " Option \"AllowNVIDIAGPUScreens\"\n"
                "EndSection\n\n");
```
and disable nvidia driver.

If so, then I think we could say it's "non-nvidia" ("no-nvidia", etc..) instead of "intel" or "amd".
Which will more suitable when multiple graphic cards are attached.

Hi Alberto,

Have you any comment on this?

[jeremyszu (os369510)]

https://github.com/tseliot/nvidia-settings/pull/14 for nvidia-settings UI.