P2571: dts: Add DT file for Tegra210 P2571 board

Based on T124 Venice2. SDMMC1 is SD-card slot.

Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 8ebd693..83e2770 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -32,7 +32,8 @@
 	tegra114-dalmore.dtb \
 	tegra124-jetson-tk1.dtb \
 	tegra124-nyan-big.dtb \
-	tegra124-venice2.dtb
+	tegra124-venice2.dtb \
+	tegra210-p2571.dtb
 dtb-$(CONFIG_ARCH_UNIPHIER) += \
 	uniphier-ph1-sld3-ref.dtb \
 	uniphier-ph1-pro4-ref.dtb \