r8152: Add MAC passthrough support for Lenovo Travel Hub

The Lenovo USB-C Travel Hub supports MAC passthrough.
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/r8152.c

@@ -770,6 +770,7 @@ enum rtl8152_flags {
 	RX_EPROTO,
 };
 
+#define DEVICE_ID_LENOVO_USB_C_TRAVEL_HUB		0x721e
 #define DEVICE_ID_THINKPAD_ONELINK_PLUS_DOCK		0x3054
 #define DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2	0x3082
 #define DEVICE_ID_THINKPAD_USB_C_DONGLE			0x720c
@@ -9586,6 +9587,7 @@ static bool rtl8152_supports_lenovo_macpassthru(struct usb_device *udev)
 
 	if (vendor_id == VENDOR_ID_LENOVO) {
 		switch (product_id) {
+		case DEVICE_ID_LENOVO_USB_C_TRAVEL_HUB:
 		case DEVICE_ID_THINKPAD_ONELINK_PLUS_DOCK:
 		case DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2:
 		case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2: