Fix txqueuelen being accidentally set to zero

TxQLen was unintentionally set to 0 due to a struct literal.

Signed-off-by: Gudmundur Bjarni Olafsson <gudmundur.bjarni@gmail.com>

plugins/meta/firewall/firewall_iptables_test.go

@@ -205,10 +205,10 @@ var _ = Describe("firewall plugin iptables backend", func() {
 		err = originalNS.Do(func(ns.NetNS) error {
 			defer GinkgoRecover()
 
+			linkAttrs := netlink.NewLinkAttrs()
+			linkAttrs.Name = IFNAME
 			err = netlink.LinkAdd(&netlink.Dummy{
-				LinkAttrs: netlink.LinkAttrs{
-					Name: IFNAME,
-				},
+				LinkAttrs: linkAttrs,
 			})
 			Expect(err).NotTo(HaveOccurred())
 			_, err = netlink.LinkByName(IFNAME)