linux-firmware: package firmware for Airoha EN8811H PHY

Add package with firmware for Airoha EN8811H 2.5G Ethernet PHY which
needs to be loaded via MDIO before the PHY can be used.

Signed-off-by: Daniel Golle <[email protected]>

package/firmware/linux-firmware/airoha.mk

@@ -0,0 +1,17 @@
+Package/airoha-en8811h-firmware = $(call Package/firmware-default,Airoha EN8811H 2.5G Ethernet PHY firmware)
+define Package/airoha-en8811h-firmware/install
+	$(INSTALL_DIR) $(1)/lib/firmware/airoha
+	$(CP) \
+		$(PKG_BUILD_DIR)/airoha/EthMD32.dm.bin \
+		$(PKG_BUILD_DIR)/airoha/EthMD32.DSP.bin \
+		$(1)/lib/firmware/airoha
+ifneq ($(CONFIG_TARGET_mediatek_filogic),)
+	$(INSTALL_DIR) $(STAGING_DIR_IMAGE)
+	cat \
+		$(PKG_BUILD_DIR)/airoha/EthMD32.dm.bin \
+		$(PKG_BUILD_DIR)/airoha/EthMD32.DSP.bin \
+		> $(STAGING_DIR_IMAGE)/EthMD32.bin
+endif
+endef
+
+$(eval $(call BuildPackage,airoha-en8811h-firmware))