linux-generic: netmap: sync tx queues
linux-generic: netmap: sync tx queues

Sync tx queues to recover from overload. Previously send
could get permanently stuck here.

Signed-off-by: Matias Elo <62402263e8617147f0e4dd5b7f6f8ec67f2b3d2c@nokia.com>
Reviewed-by: Petri Savolainen <d528fd253b9aaf78fa72edbcc6249e82047f6ce6@nokia.com>
Signed-off-by: Maxim Uvarov <db4d16e02ae2d7493db430203537da8b2e34f290@linaro.org>

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