ARM: dts: imx6sx: add i.mx6sx sabreauto board support

Add basic i.MX6SoloX Sabre Auto board support, currently
only debug UART and uSDHC are supported on this board.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 91bd5bd..c0d5c66 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -266,6 +266,7 @@
 	imx6q-tx6q-1020-comtft.dtb \
 	imx6q-tx6q-1110.dtb \
 	imx6sl-evk.dtb \
+	imx6sx-sabreauto.dtb \
 	imx6sx-sdb.dtb \
 	ls1021a-qds.dtb \
 	ls1021a-twr.dtb \