kni: fix build

[ upstream commit 327ef5065996356e1a4b77fb93c85737c99bb8fe ]

A previous fix had #else instead of #endif.
The error message is:
	kernel/linux/kni/kni_net.c: In function ‘kni_net_rx_normal’:
	kernel/linux/kni/kni_net.c:448:2: error: #else after #else

Bugzilla ID: 1025
Fixes: c98600d4bed6 ("kni: fix build with Linux 5.18")
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>

kernel/linux/kni/kni_net.c

@@ -415,7 +415,7 @@ kni_net_rx_normal(struct kni_dev *kni)
 		netif_rx_ni(skb);
 #else
 		netif_rx(skb);
-#else
+#endif
 
 		/* Update statistics */
 		dev->stats.rx_bytes += len;