ARM: dts: Renesas RZN1D-DB Board base file

This adds a base device tree file for the RZN1-DB board, with only the
basic support allowing the system to boot to a prompt. Only one UART is
used, with only a single CPU running.

Signed-off-by: Michel Pollet <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Simon Horman <[e-mail]>

arch/arm/boot/dts/Makefile

···
 	r8a7793-gose.dtb \
 	r8a7794-alt.dtb \
 	r8a7794-silk.dtb \
+	r9a06g032-rzn1d400-db.dtb \
 	sh73a0-kzm9g.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += \
 	rv1108-evb.dtb \

arch/arm/boot/dts/r9a06g032-rzn1d400-db.dts

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the RZN1D-DB Board
+ *
+ * Copyright (C) 2018 Renesas Electronics Europe Limited
+ *
+ */
+
+/dts-v1/;
+
+#include "r9a06g032.dtsi"
+
+/ {
+	model = "RZN1D-DB Board";
+	compatible = "renesas,rzn1d400-db", "renesas,r9a06g032";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		serial0 = &uart0;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};