board: i.MX6QDL: add Engicam i.CoreM6 1.5 QDL MIPI starter kit

i.CoreM6 1.5 is an another i.CoreM6 QDL cpu modules which can be connected
to EDIMM starter kit design with eMMC and MIPI-CSI interfaces suitable for
Android and video capture application.

notable features:
CPU			NXP i.MX6 S/DL/D/Q, Up to 4 x Cortex-A9@800MHz
Memory  		Up to 2 GB DDR3-1066
Video Interfaces	Up to 1 Parallel Up to 2 LVDS HDMI 1.4
			port 8 bit CSI INPUT MIPI-CSI INPUT
1 x 10/100 Ethernet interface, 2 x USB, 1 x PCIe, 1 x I2S etc

This patch adds support for Quad/Dual and DualLite/Solo SOM's on
MIPI starter kit with boot from SD and eMMC.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/dts/imx6q-icore-mipi.dts b/arch/arm/dts/imx6q-icore-mipi.dts
new file mode 100644
index 0000000..527f52c
--- /dev/null
+++ b/arch/arm/dts/imx6q-icore-mipi.dts
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2017 Engicam S.r.l.
+ * Copyright (C) 2017 Amarula Solutions B.V.
+ * Author: Jagan Teki <jagan@amarulasolutions.com>
+ */
+
+/dts-v1/;
+
+#include "imx6q.dtsi"
+#include "imx6qdl-icore.dtsi"
+
+/ {
+	model = "Engicam i.CoreM6 Quad/Dual MIPI Starter Kit";
+	compatible = "engicam,imx6-icore", "fsl,imx6q";
+};
+
+&usdhc3 {
+	u-boot,dm-spl;
+	status = "okay";
+};