[SKBUFF]: Fix incorrect config #ifdef around skb_copy_secmark

secmark doesn't depend on CONFIG_NET_SCHED.

Signed-off-by: Patrick McHardy <[e-mail]>
Acked-by: James Morris <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/core/skbuff.c

···
 	n->tc_verd = CLR_TC_MUNGED(n->tc_verd);
 	C(iif);
 #endif
-	skb_copy_secmark(n, skb);
 #endif
+	skb_copy_secmark(n, skb);
 	C(truesize);
 	atomic_set(&n->users, 1);
 	C(head);