ARM: meson: add Beelink GS-King X board

The Beelink GS-King X is a variant of the GS King boards but with an internal
USB to SATA bridge and advanced audio features.

[narmstrong: add missing CONFIG_SYS_LOAD_ADDR from defconfig]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/arch/arm/dts/meson-g12b-gsking-x-u-boot.dtsi b/arch/arm/dts/meson-g12b-gsking-x-u-boot.dtsi
new file mode 100644
index 0000000..236f246
--- /dev/null
+++ b/arch/arm/dts/meson-g12b-gsking-x-u-boot.dtsi
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include "meson-g12-common-u-boot.dtsi"