Create packageset riscv

[Robie Basak]

On Thu, Oct 09, 2025 at 12:18:08PM +0200, Heinrich Schuchardt wrote:
> Please, create a packageset "riscv" for RISC-V specific packages containing
> the following source packages:

No, thank you. Doing this first results in a circular dependency, and in
any case a packageset needs an unambigious definition. Please just apply
for PPU for specific packages as required, and we'll figure out a
packageset if required.