[PATCH] ethdev: introduce generic dummy packet burst function

[Morten Brørup]

> From: Ferruh Yigit [mailto:ferruh.yigit at intel.com]
> Sent: Tuesday, 8 February 2022 20.45
> 
> Multiple PMDs have dummy/noop Rx/Tx packet burst functions.
> 
> These dummy functions are very simple, introduce a common function in
> the ethdev and update drivers to use it instead of each driver having
> its own functions.
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>

After briefly considering if the dummy TX should free the burst, I concluded that the current behavior is correct.

Good clean-up. :-)

Acked-by: Morten Brørup <mb at smartsharesystems.com>