Ethernet : Refine phy_rst of reset pin

Change-Id: I154fa65e5656f8422e997e5206998a75f7acd30e

Author: tom-shen-asus

arch/arm/boot/dts/rk3288-tinker_board.dtsi

@@ -204,7 +204,7 @@
 	phy-supply = <&vcc33_lan>;
 	phy-mode = "rgmii";
 	clock_in_out = "input";
-	snps,reset-gpio = <&gpio4 7 0>;
+	snps,reset-gpio = <&gpio4 8 0>;
 	snps,reset-active-low;
 	snps,reset-delays-us = <0 10000 50000>;
 	assigned-clocks = <&cru SCLK_MAC>;