kernel: modules: netdevice: remove kmod-of-mdio dependency for kmod-stmmac-core

The 'kmod-stmmac-core' package is referenced by the following packages:
* kmod-dwmac-intel
* kmod-dwmac-imx
* kmod-dwmac-sun8i

The problem is that 'kmod-of-mdio' is not selectable for 'TARGET_x86'.
That means the package 'kmod-dwmac-intel' is not available on this
architecture and so the package 'kmod-dwmac-intel' could not be enabled.

To fix this remove the dependencies 'kmod-of-mdio' from 'kmod-stmmac-core'.
This is not needed on this level, because the modules 'kmod-of-mdio' is
already selected by the packages 'kmod-dwmac-imx' and 'kmod-dwmac-sun8i'.

Signed-off-by: Florian Eckert <[email protected]>

package/kernel/linux/modules/netdevices.mk

@@ -1607,7 +1607,7 @@ $(eval $(call KernelPackage,pcs-xpcs))
 define KernelPackage/stmmac-core
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Synopsis Ethernet Controller core (NXP,STMMicro,others)
-  DEPENDS:=@TARGET_x86_64||TARGET_armsr_armv8 +kmod-pcs-xpcs +LINUX_6_6:kmod-of-mdio +kmod-ptp
+  DEPENDS:=@TARGET_x86_64||TARGET_armsr_armv8 +kmod-pcs-xpcs +kmod-ptp
   KCONFIG:=CONFIG_STMMAC_ETH \
     CONFIG_STMMAC_SELFTESTS=n \
     CONFIG_STMMAC_PLATFORM \