ARM: dts: NSP: Add crypto (SPU) to dtsi

Adds crypto hardware (SPU) to Northstar Plus device tree file.
Signed-off-by: NSteve Lin <steven.lin1@broadcom.com>
Acked-by: NJon Mason <jon.mason@broadcom.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>

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

@@ -297,6 +297,12 @@
 			#size-cells = <0>;
 		};
 
+		crypto@2f000 {
+			compatible = "brcm,spum-nsp-crypto";
+			reg = <0x2f000 0x900>;
+			mboxes = <&mailbox 0>;
+		};
+
 		gpiob: gpio@30000 {
 			compatible = "brcm,iproc-nsp-gpio", "brcm,iproc-gpio";
 			reg = <0x30000 0x50>;