[llvm] [AMDGPU] Add missing product names for released processors (PR #227727)

[Bart van der Braak via llvm-commits]

bartvdbraak wrote:

> Is there a public source of truth for the product names you've added? E.g. wikipedia or kernel PCI lists or ...

I used a combination of the following sources:
- PCI Vendor IDs for AMD: https://admin.pci-ids.ucw.cz/read/PC/1002
- `radeon_family enum` in  [`amd/common/amd_family.h` of `mesa/mesa`](https://gitlab.freedesktop.org/mesa/mesa/-/blob/main/src/amd/common/amd_family.h)
- Cross-referencing info from [TechPowerUp's GPU Database](https://www.techpowerup.com/gpu-specs)

https://github.com/llvm/llvm-project/pull/227727