kernel: add driver for Airoha EN8811H PHY as module

Add PHY driver for Airoha EN8811H PHY and package it as kernel module.
The PHY needs to load firmware from rootfs, so there is no point in
having the driver built-into the kernel.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/kernel/linux/modules/netdevices.mk

@@ -375,6 +375,23 @@ endef
 $(eval $(call KernelPackage,phy-smsc))
 
 
+define KernelPackage/phy-airoha-en8811h
+  SUBMENU:=$(NETWORK_DEVICES_MENU)
+  TITLE:=Airoha EN8811H 2.5G Ethernet PHY
+  DEPENDS:=+airoha-en8811h-firmware +kmod-libphy +kmod-hwmon-core @LINUX_6_1
+  KCONFIG:=CONFIG_AIR_EN8811H_PHY
+  FILES:= \
+   $(LINUX_DIR)/drivers/net/phy/air_en8811h.ko
+  AUTOLOAD:=$(call AutoLoad,18,air_en8811h,1)
+endef
+
+define KernelPackage/phy-airoha-en8811h/description
+  Kernel modules for Airoha EN8811H 2.5G Ethernet PHY
+endef
+
+$(eval $(call KernelPackage,phy-airoha-en8811h))
+
+
 define KernelPackage/phy-aquantia
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Aquantia Ethernet PHYs

target/linux/generic/hack-6.1/700-swconfig_switch_drivers.patch

@@ -92,7 +92,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +
  comment "MII PHY device drivers"
 
- config AMD_PHY
+ config AIR_EN8811H_PHY
 --- a/drivers/net/phy/Makefile
 +++ b/drivers/net/phy/Makefile
 @@ -24,6 +24,21 @@ libphy-$(CONFIG_LED_TRIGGER_PHY)	+= phy_