ieee802154: Convert uses of __constant_<foo> to <foo>

The use of __constant_<foo> has been unnecessary for quite awhile now.

Make these uses consistent with the rest of the kernel.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ieee802154/6lowpan_rtnl.c

@@ -613,7 +613,7 @@ static struct notifier_block lowpan_dev_notifier = {
 };
 
 static struct packet_type lowpan_packet_type = {
-	.type = __constant_htons(ETH_P_IEEE802154),
+	.type = htons(ETH_P_IEEE802154),
 	.func = lowpan_rcv,
 };
 

net/ieee802154/af_ieee802154.c

@@ -326,7 +326,7 @@ static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev,
 
 
 static struct packet_type ieee802154_packet_type = {
-	.type = __constant_htons(ETH_P_IEEE802154),
+	.type = htons(ETH_P_IEEE802154),
 	.func = ieee802154_rcv,
 };