[RFC v3 24/26] dev: introduce device accessors

[Bruce Richardson]

On Thu, Jul 28, 2022 at 05:26:38PM +0200, David Marchand wrote:
> Prepare for making the device object opaque by adding accessors.
> Update existing "external" users.
> 
> Signed-off-by: David Marchand <david.marchand at redhat.com>
> ---
> Changes since RFC v2:
> - added rte_dev_devargs,
> - updated testpmd,
>
Acked-by: Bruce Richardson <bruce.richardson at intel.com>