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 <jie1x.wang@intel.com>
Acked-by: Aman Singh <aman.deep.singh@intel.com>