ARM: dts: NSP: Specify RAM amount for BCM958625K board

Add 2GB of memory starting at physical offset 0x6000_0000.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm958625k.dts

@@ -46,6 +46,11 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x60000000 0x80000000>;
+	};
 };
 
 &uart0 {