ipv6: correct the ipv6 option name - Pad0 to Pad1

The padding destination or hop-by-hop option is called Pad1 and not Pad0.

See RFC2460 (4.2) or the IANA ipv6-parameters registry:
http://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xml

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index 882124ceb..2c8ad7c 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -397,7 +397,7 @@
 
 	while (len > 1) {
 		switch (xh[off]) {
-		case IPV6_TLV_PAD0:
+		case IPV6_TLV_PAD1:
 			optlen = 1;
 			break;
 		case IPV6_TLV_JUMBO: