arm: dts: mt2701: Add reset-cells

The hifsys and ethsys needs the definition of the reset-cells
property. Fix this.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm/boot/dts/mt2701.dtsi

@@ -604,6 +604,7 @@ hifsys: syscon@1a000000 {
 		compatible = "mediatek,mt2701-hifsys", "syscon";
 		reg = <0 0x1a000000 0 0x1000>;
 		#clock-cells = <1>;
+		#reset-cells = <1>;
 	};
 
 	usb0: usb@1a1c0000 {
@@ -688,6 +689,7 @@ ethsys: syscon@1b000000 {
 		compatible = "mediatek,mt2701-ethsys", "syscon";
 		reg = <0 0x1b000000 0 0x1000>;
 		#clock-cells = <1>;
+		#reset-cells = <1>;
 	};
 
 	eth: ethernet@1b100000 {