net: replace uses of __constant_{endian}

Base versions handle constant folding now.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/802/psnap.c b/net/802/psnap.c
index 70980ba..6ed71174 100644
--- a/net/802/psnap.c
+++ b/net/802/psnap.c
@@ -51,7 +51,7 @@
 	int rc = 1;
 	struct datalink_proto *proto;
 	static struct packet_type snap_packet_type = {
-		.type = __constant_htons(ETH_P_SNAP),
+		.type = cpu_to_be16(ETH_P_SNAP),
 	};
 
 	if (unlikely(!pskb_may_pull(skb, 5)))