[PATCH 21.11] vhost: fix doxygen warnings

[Kevin Traynor]

On 20/12/2022 12:37, Kevin Traynor wrote:
> Doxygen 1.9.5 gives a false positive warnings [1]
> for @params on function pointer params.
> 
> This is fixed in doxygen 1.9.6 but Fedora 37 uses
> 1.9.5 at present.
> 
> Remove the @param but keep the comments for info in
> the header file as a workaround until 1.9.6 is more
> widely deployed.
> 
> [1]
> /lib/vhost/rte_vhost_async.h:48: warning:
> rte_vhost_async_channel_ops::transfer_data
> has @param documentation sections but no arguments
> /lib/vhost/rte_vhost_async.h:68: warning:
> rte_vhost_async_channel_ops::check_completed_copies
> has @param documentation sections but no arguments
> 
> Signed-off-by: Kevin Traynor<ktraynor at redhat.com>
> ---

Pushed to 21.11 branch for 21.11.3. Thanks.