samsung: Add missing dependencies to kmod-of-mdio

The samsung target builds of_mdio.ko as a module, add the needed
dependency to it.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/kernel/linux/modules/netdevices.mk

@@ -113,7 +113,7 @@ $(eval $(call KernelPackage,mii))
 define KernelPackage/mdio-gpio
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:= Supports GPIO lib-based MDIO busses
-  DEPENDS:=+kmod-libphy @GPIO_SUPPORT +(TARGET_armvirt||TARGET_brcm2708_bcm2708):kmod-of-mdio
+  DEPENDS:=+kmod-libphy @GPIO_SUPPORT +(TARGET_armvirt||TARGET_brcm2708_bcm2708||TARGET_samsung):kmod-of-mdio
   KCONFIG:= \
 	CONFIG_MDIO_BITBANG \
 	CONFIG_MDIO_GPIO
@@ -245,7 +245,7 @@ $(eval $(call KernelPackage,switch-rtl8306))
 define KernelPackage/switch-rtl8366-smi
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Realtek RTL8366 SMI switch interface support
-  DEPENDS:=@GPIO_SUPPORT +kmod-swconfig +(TARGET_armvirt||TARGET_brcm2708_bcm2708):kmod-of-mdio
+  DEPENDS:=@GPIO_SUPPORT +kmod-swconfig +(TARGET_armvirt||TARGET_brcm2708_bcm2708||TARGET_samsung):kmod-of-mdio
   KCONFIG:=CONFIG_RTL8366_SMI
   FILES:=$(LINUX_DIR)/drivers/net/phy/rtl8366_smi.ko
   AUTOLOAD:=$(call AutoLoad,42,rtl8366_smi)