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/dsa/mv88e6131.c b/net/dsa/mv88e6131.c
index 374d46a..70fae24 100644
--- a/net/dsa/mv88e6131.c
+++ b/net/dsa/mv88e6131.c
@@ -353,7 +353,7 @@
 }
 
 static struct dsa_switch_driver mv88e6131_switch_driver = {
-	.tag_protocol		= __constant_htons(ETH_P_DSA),
+	.tag_protocol		= cpu_to_be16(ETH_P_DSA),
 	.priv_size		= sizeof(struct mv88e6xxx_priv_state),
 	.probe			= mv88e6131_probe,
 	.setup			= mv88e6131_setup,