arm64: dts: juno: Fix mem-timer

The Juno's mem-timer DT node was not fully compliant with the DT binding,
which has certain expectation about child nodes and their size and
address cells values.

Use a cell size of 1, as the binding requests, and spell out the ranges
property to be binding compliant.

Link: https://lore.kernel.org/r/20200513103016.130417-8-andre.przywara@arm.comSigned-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

arch/arm64/boot/dts/arm/juno-base.dtsi

@@ -11,14 +11,14 @@ memtimer: timer@2a810000 {
 		compatible = "arm,armv7-timer-mem";
 		reg = <0x0 0x2a810000 0x0 0x10000>;
 		clock-frequency = <50000000>;
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x0 0x2a820000 0x20000>;
 		status = "disabled";
 		frame@2a830000 {
 			frame-number = <1>;
 			interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
-			reg = <0x0 0x2a830000 0x0 0x10000>;
+			reg = <0x10000 0x10000>;
 		};
 	};