ARM: mvebu: Add BootROM to Armada 370/XP device tree

In order to access the SoC BootROM, we need to declare a mapping
(through a ranges property). The mbus driver will use this property
to allocate a suitable address decoding window.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/armada-xp.dtsi

@@ -29,6 +29,11 @@
 	soc {
 		compatible = "marvell,armadaxp-mbus", "simple-bus";
 
+		bootrom {
+			compatible = "marvell,bootrom";
+			reg = <MBUS_ID(0x01, 0x1d) 0 0x100000>;
+		};
+
 		internal-regs {
 			L2: l2-cache {
 				compatible = "marvell,aurora-system-cache";