sh_eth: enable wake-on-lan for sh7734

This is based on public datasheet for sh7734 which shows it has the
same behavior and registers for WoL as other versions of sh_eth.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/renesas/sh_eth.c

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5700d0b..4fdaa04 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -817,6 +817,7 @@ static struct sh_eth_cpu_data sh7734_data = {
 	.tsu		= 1,
 	.hw_checksum	= 1,
 	.select_mii	= 1,
+	.magic		= 1,
 };
 
 /* SH7763 */