RISC-V: Add implication for M extension.

[Patrick O'Neill]

On 10/11/24 09:16, Patrick O'Neill wrote:

> Sending this with a text attachment to see if patchworks accepts a 
> 'text/x-patch' attachment type.
> Review can still happen on the original thread:
> https://inbox.sourceware.org/gcc-patches/CAFRyf0MmB9hS9Cng4w8y5N06d+4tfUvGRrrnvUvtSROpmAnP2Q@mail.gmail.com/T/#u 
>
>
> Sorry for the technical difficulties Tsung Chun!
>
> - Patrick

Seems like that did the trick. Pre-commit results will be on this page 
within 3 hours:
https://patchwork.sourceware.org/project/gcc/patch/f0d75be3-85e0-4948-8e94-481479eeff32@rivosinc.com/

Thanks!
Patrick