[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>
> ---
>  docs/about/deprecated.rst       |  2 +-
>  docs/specs/acpi_erst.rst        |  4 ++--
>  docs/system/devices/canokey.rst |  8 ++++----
>  docs/system/devices/cxl.rst     | 12 ++++++------
>  4 files changed, 13 insertions(+), 13 deletions(-)
>

Docs patches are safe for rc3. I have to do a target-arm
pullreq anyway for rc3, so I'll take this via that, unless
anybody objects.

thanks
-- PMM