bnxt_en: Check the FW_LLDP_AGENT flag before allowing DCBX host agent.

Check the additional flag in bnxt_hwrm_func_qcfg() before allowing
DCBX to be done in host mode.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -4483,7 +4483,8 @@ static int bnxt_hwrm_func_qcfg(struct bnxt *bp)
 	}
 #endif
 	if (BNXT_PF(bp) && (le16_to_cpu(resp->flags) &
-			    FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED))
+			    (FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED |
+			     FUNC_QCFG_RESP_FLAGS_FW_LLDP_AGENT_ENABLED)))
 		bp->flags |= BNXT_FLAG_FW_LLDP_AGENT;
 
 	switch (resp->port_partition_type) {