app/testpmd: fix DCB in VT configuration
app/testpmd: fix DCB in VT configuration

When set port DCB in VT mode enabled, it should remove RSS HASH
offload before reconfiguring the device and queues.

Because port multi-queue mode is changed from RSS to DCB in VT.

Fixes: 2a977b891f99 ("app/testpmd: fix DCB configuration")
Cc: stable@dpdk.org

Signed-off-by: Jie Wang <28cdc5151f9f1ff6f3675d64d2ac4944557025eb@intel.com>
Acked-by: Aman Singh <fb393a3ad4e707279057dbfe1c724dcc482648dd@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk