dts: mtmips: enable eth port0 led and link poll functions for all boards

This patch adds default p0led status and phy0 link polling for all boards.

Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/arch/mips/dts/mt7628a.dtsi b/arch/mips/dts/mt7628a.dtsi
index b0e0ed7..5fd83c1 100644
--- a/arch/mips/dts/mt7628a.dtsi
+++ b/arch/mips/dts/mt7628a.dtsi
@@ -346,7 +346,7 @@
 		};
 	};
 
-	eth@10110000 {
+	eth: eth@10110000 {
 		compatible = "mediatek,mt7628-eth";
 		reg = <0x10100000 0x10000
 		       0x10110000 0x8000>;