net/hns3: fix DCB mode check
net/hns3: fix DCB mode check

Currently, "ONLY DCB" and "DCB+RSS" mode are both supported by HNS3
PF driver. But the driver verifies only the "DCB+RSS" multiple queues
mode.

Fixes: 62e3ccc2b94c ("net/hns3: support flow control")
Cc: stable@dpdk.org

Signed-off-by: Huisong Li <6909b08cc600214438d1cc25e31062c8d1c2efdc@huawei.com>
Signed-off-by: Min Hu (Connor) <f02e10cb0a484c51b0f8634f83fbb4ab9ded1c6a@huawei.com>

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