therock_amdgpu_targets.cmake: RX 7700S is a dgpu

[scottt]

AMD RX 7700S is in a dgpu and not an igpu.

See how its a separate graphics module for the Framework Laptop 16 https://frame.work/products/16-graphics-module-amd-radeon-rx-7700s

[stellaraccident]

We're still working on the best way to bundle these together and may change the category names in the future. But thank you for spotting/fixing the current error.

[scottt]

@stellaraccident , If you're trying to group GPU support into categories, I do have suggestions as someone not familiar with AMD product lines:

• make the images produced by TheRock have a clear mapping with the tables on the System requiresments (Linux) and System requirements (Windows) pages e.g. one tab in the table could map to one image

• grouping of "data center MI300 GPUs (gfx94x)", "RDNA 3 gfx110x", and "RDNA4 gfx120X" is relatively easy to understand due to differing architecture, the gfx110x-dgpu vs gfx110x-igpu distinction less so

• if the RDNA3.5 GPUs were shown in one "AMD APU" tab on the system requiremens page, having a image for them would also be intuitive etc