package/linux-firmware: Add RTL8152/8153/8156 firmware

Add firmware for Realtek 8152/8153/8156 based USB Ethernet adapters.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/linux-firmware/Config.in

@@ -445,6 +445,12 @@ config BR2_PACKAGE_LINUX_FIRMWARE_QLOGIC_4X
 	  Firmware files for QLogic FastLinQ 4xxxx ethernet devices
 	  (qede)
 
+config BR2_PACKAGE_LINUX_FIRMWARE_RTL_815X
+	bool "Realtek 8152/8153/8156 USB Ethernet Adapaters"
+	help
+	  Firmware files for Realtek 8152/8153/8156 based USB Ethernet
+	  adapters.
+
 config BR2_PACKAGE_LINUX_FIRMWARE_RTL_8169
 	bool "Realtek 8169"
 	help

package/linux-firmware/linux-firmware.mk

@@ -540,6 +540,19 @@ LINUX_FIRMWARE_FILES += \
 # which is installed unconditionally
 endif
 
+# rtl815x
+ifeq ($(BR2_PACKAGE_LINUX_FIRMWARE_RTL_815X),y)
+LINUX_FIRMWARE_FILES += \
+	rtl_nic/rtl8153a-2.fw \
+	rtl_nic/rtl8153a-3.fw \
+	rtl_nic/rtl8153a-4.fw \
+	rtl_nic/rtl8153b-2.fw \
+	rtl_nic/rtl8153c-1.fw \
+	rtl_nic/rtl8156a-2.fw \
+	rtl_nic/rtl8156b-2.fw
+LINUX_FIRMWARE_ALL_LICENSE_FILES += LICENCE.rtlwifi_firmware.txt
+endif
+
 ifeq ($(BR2_PACKAGE_LINUX_FIRMWARE_RTL_8169),y)
 LINUX_FIRMWARE_FILES += \
 	rtl_nic/rtl8105e-1.fw \