sh: Set CONFIG_SH_ETHER_PHY_MODE and CONFIG_SH_ETHER_SH7734_MII to boards with sh_eth

The board with sh_eth needs to set CONFIG_SH_ETHER_PHY_MODE.
And SH7734 needs to set value of CONFIG_SH_ETHER_SH7734_MII.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/include/configs/ecovec.h b/include/configs/ecovec.h
index 4d09132..f6aacd0 100644
--- a/include/configs/ecovec.h
+++ b/include/configs/ecovec.h
@@ -95,6 +95,7 @@
 #define CONFIG_PHYLIB
 #define CONFIG_BITBANGMII
 #define CONFIG_BITBANGMII_MULTI
+#define CONFIG_SH_ETHER_PHY_MODE PHY_INTERFACE_MODE_MII
 
 /* USB / R8A66597 */
 #define CONFIG_USB_R8A66597_HCD