api: pktio: add pktout event queue
api: pktio: add pktout event queue

Added ODP_PKTOUT_MODE_QUEUE and odp_pktout_event_queue() to
enable configuration of event queues for packet output. This
is useful (for modularity) when output of an application
module may be connected to input of other modules or packet
output depending on the application configuration.

Signed-off-by: Petri Savolainen <d528fd253b9aaf78fa72edbcc6249e82047f6ce6@nokia.com>
Reviewed-and-tested-by: Bill Fischofer <52f3c909d51cc5d355a68a403df6906b3c1a8f83@linaro.org>
Signed-off-by: Maxim Uvarov <db4d16e02ae2d7493db430203537da8b2e34f290@linaro.org>

erachmi/odp,erachmi/odp,mike-holmes-linaro/odp,erachmi/odp,nmorey/odp,dkrot/odp,dkrot/odp,nmorey/odp,nmorey/odp,mike-holmes-linaro/odp,mike-holmes-linaro/odp,ravineet-singh/odp,ravineet-singh/odp,dkrot/odp,nmorey/odp,mike-holmes-linaro/odp,ravineet-singh/odp,dkrot/odp,erachmi/odp,ravineet-singh/odp