[PING][PATCH][wwwdocs] GCC 10: Document RISC-V target's requirement for binutils 2.30

[Maciej W. Rozycki via Gcc-patches]

On Thu, 2 Apr 2020, Maciej W. Rozycki wrote:

> Match GCC commit bfe78b08471f ("RISC-V: Using fmv.x.w/fmv.w.x rather 
> than fmv.x.s/fmv.s.x") and commit 879bc686a0aa ("doc: RISC-V: Update 
> binutils requirement to 2.30").

 Ping for:

<https://gcc.gnu.org/pipermail/gcc-patches/2020-April/543144.html>

  Maciej