arm: dtbs: add virtio mmio device to rtsm

Add the virtio MMIO device to the rtsm include file.

Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/arch/arm/boot/dts/rtsm_ve-motherboard.dtsi b/arch/arm/boot/dts/rtsm_ve-motherboard.dtsi
index 6d12566..a2d895e 100644
--- a/arch/arm/boot/dts/rtsm_ve-motherboard.dtsi
+++ b/arch/arm/boot/dts/rtsm_ve-motherboard.dtsi
@@ -167,6 +167,13 @@
 				use_dma = <0>;
 				framebuffer = <0x18000000 0x00180000>;
 			};
+
+			virtio_block@0130000 {
+				compatible = "virtio,mmio";
+				reg = <0x130000 0x200>;
+				interrupts = <42>;
+			};
+
 		};
 
 		v2m_fixed_3v3: fixedregulator@0 {