net: decnet: Fix a typo in dn_nsp_in.c

Modify "erronous" to "erroneous" in net/decnet/dn_nsp_in.c.
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NLu Wei <luwei32@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/decnet/dn_nsp_in.c

@@ -520,7 +520,7 @@ static void dn_nsp_linkservice(struct sock *sk, struct sk_buff *skb)
 	fcval = *ptr;
 
 	/*
-	 * Here we ignore erronous packets which should really
+	 * Here we ignore erroneous packets which should really
 	 * should cause a connection abort. It is not critical
 	 * for now though.
 	 */