net/hns3: fix debug build
net/hns3: fix debug build

The variable "dev" is not used in hns3_get_tx_prep_needed()
in the case of RTE_LIBRTE_ETHDEV_DEBUG:
drivers/net/hns3/hns3_rxtx.c:4213:45: error: unused parameter ‘dev’

Fixes: d7ec2c076579 ("net/hns3: select Tx prepare based on Tx offload")
Cc: stable@dpdk.org

Reported-by: David Marchand <f28529695cfa9e3e1eb84e7072aa626af4abb18e@redhat.com>
Signed-off-by: Thomas Monjalon <5f50a84c1fa3bcff146405017f36aec1a10a9e38@monjalon.net>
Acked-by: David Marchand <f28529695cfa9e3e1eb84e7072aa626af4abb18e@redhat.com>

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