ARM64: dts: meson-gxl: Add Ethernet PHY LEDS pins nodes

The Amlogic Meson GXL SoCs embeds an 10/100 Ethernet PHY, this patchs adds
the Link and Activity LEDs signals pins nodes.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-gxl.dtsi

@@ -404,6 +404,20 @@ mux {
 			};
 		};
 
+		eth_link_led_pins: eth_link_led {
+			mux {
+				groups = "eth_link_led";
+				function = "eth_led";
+			};
+		};
+
+		eth_act_led_pins: eth_act_led {
+			mux {
+				groups = "eth_act_led";
+				function = "eth_led";
+			};
+		};
+		
 		pwm_a_pins: pwm_a {
 			mux {
 				groups = "pwm_a";