DPDK: Bond interfaces fail when dedicated queues are enabled

While experimenting with `rte_eth_bond_8023ad_dedicated_queues_enable()` on bond interfaces, I discovered that Gatekeeper stops working about 10 minutes after it starts. I filed a [bug report](https://bugs.dpdk.org/show_bug.cgi?id=1415) upstream; see the bug report for more information.

Until this bug is solved, one cannot check if dedicated queues improves the performance of bond interfaces in Gatekeeper.