ARM: imx: udoo: Convert block devices to DM

Enable DM block, DM MMC and DM SATA support on iMX6 Udoo
convert board code to match the DM support.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/dts/imx6qdl-udoo-u-boot.dtsi b/arch/arm/dts/imx6qdl-udoo-u-boot.dtsi
new file mode 100644
index 0000000..749791a
--- /dev/null
+++ b/arch/arm/dts/imx6qdl-udoo-u-boot.dtsi
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/ {
+	aliases {
+		mmc0 = &usdhc3;
+	};
+};