ARM: dts: rockchip: rmii_phy use increment 0 for rv1106-evb

Only network cables with waterproof wires require +2, otherwise 0.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Change-Id: Ic00c06857a9f49d4648a2fa94d7630f7b293c4b9

arch/arm/boot/dts/rv1106-evb.dtsi

@@ -72,6 +72,10 @@
 	status = "okay";
 };
 
+&rmii_phy {
+	bgs,increment = <0>;
+};
+
 &rng {
 	status = "okay";
 };