dpdk: fix coverity
dpdk: fix coverity

Coverity does not seem happy about exotic control
flows in switch/case statements

Change-Id: Ie006190058f811aacf85125ebc58330d9c53510f
Signed-off-by: Mohammed Hawari <e345ebb5fb15a590b29a075cdaf46eed42e192de@hawari.fr>
Type: fix
Fixes: 0b42ac565b970c186a9ad734f980b440f56fb25b

FDio/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp