[PATCH for-7.1?] Fix some typos in documentation (most of them found by codespell)

[Peter Maydell]

On Fri, 12 Aug 2022 at 08:59, Stefan Weil via <qemu-devel at nongnu.org> wrote:
>
> Signed-off-by: Stefan Weil <sw at weilnetz.de>
> ---

Reviewed-by: Peter Maydell <peter.maydell at linaro.org>

thanks
-- PMM