ARM: dts: lpc18xx: add sct pwm node

NXP LPC SoCs family, which includes LPC18xx/LPC43xx, provides a State
Configurable Timer (SCT) which can be configured as a Pulse Width
Modulator.
Signed-off-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
Signed-off-by: Joachim Eastwood <manabian@gmail.com>

arch/arm/boot/dts/lpc18xx.dtsi

@@ -68,6 +68,16 @@ gp_clkin: gp_clkin {
 	};
 
 	soc {
+		sct_pwm: pwm@40000000 {
+			compatible = "nxp,lpc1850-sct-pwm";
+			reg = <0x40000000 0x1000>;
+			clocks =<&ccu1 CLK_CPU_SCT>;
+			clock-names = "pwm";
+			resets = <&rgu 37>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
 		dmac: dma-controller@40002000 {
 			compatible = "arm,pl080", "arm,primecell";
 			arm,primecell-periphid = <0x00041080>;