ARM: dts: meson-g12a: add U-Boot specific DT for graphics

Like the meson-gx support, add the U-Boot specific bits in DT
to support graphics on G12A SoCs.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NAnatolij Gustschin <agust@denx.de>

arch/arm/dts/meson-g12a-sei510-u-boot.dtsi

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include "meson-g12a-u-boot.dtsi"

arch/arm/dts/meson-g12a-u-boot.dtsi

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Maxime Jourdan <mjourdan@baylibre.com>
+ */
+
+/ {
+	soc {
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&canvas {
+	status = "disabled";
+};
+
+&vpu {
+	reg = <0x0 0xff900000 0x0 0x100000>,
+	      <0x0 0xff63c000 0x0 0x1000>,
+	      <0x0 0xff638000 0x0 0x400>;
+	reg-names = "vpu", "hhi", "dmc";
+	u-boot,dm-pre-reloc;
+};
+
+&hdmi_tx {
+	reg = <0x0 0x0 0x0 0x10000>,
+	      <0x0 0x3c000 0x0 0x1000>;
+	reg-names = "hdmitx", "hhi";
+};

arch/arm/dts/meson-g12a-u200-u-boot.dtsi

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include "meson-g12a-u-boot.dtsi"

arch/arm/dts/meson-g12b-odroid-n2-u-boot.dtsi

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include "meson-g12a-u-boot.dtsi"