ARM: dts: Add node for Broadcom OTP controller driver

Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Tested-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Oza Pawandeep <oza@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm-cygnus.dtsi

@@ -91,6 +91,13 @@ axi {
 		#address-cells = <1>;
 		#size-cells = <1>;
 
+		otp: otp@0301c800 {
+			compatible = "brcm,ocotp";
+			reg = <0x0301c800 0x2c>;
+			brcm,ocotp-size = <2048>;
+			status = "disabled";
+		};
+
 		pcie_phy: phy@0301d0a0 {
 			compatible = "brcm,cygnus-pcie-phy";
 			reg = <0x0301d0a0 0x14>;