ARM: dts: Sync Amlogic Meson AXG DT from Linux 4.20-rc1

Synchronize the Amlogic AXG Device Tree files and bindings include from
the recent Linux 4.20-rc1, because it includes patches fixing support for
U-boot.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 84b7e53..1fa2f2d 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -59,7 +59,8 @@
 	meson-gxl-s905x-p212.dtb \
 	meson-gxl-s905x-libretech-cc.dtb \
 	meson-gxl-s905x-khadas-vim.dtb \
-	meson-gxm-khadas-vim2.dtb
+	meson-gxm-khadas-vim2.dtb \
+	meson-axg-s400.dtb
 dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \
 	tegra20-medcom-wide.dtb \
 	tegra20-paz00.dtb \