arm: dts: h6: Add Beelink GS1 initial support

Beelink GS1 is an Allwinner H6 based TV box,
which support:
- Allwinner H6 Quad-core 64-bit ARM Cortex-A53
- GPU Mali-T720
- 2GB LPDDR3 RAM
- 16GB eMMC
- AXP805 PMIC
- 1Gbps GMAC via RTL8211E
- USB 2.0 and 3.0 Host
- HDMI port
- S/PDIF port
- 5V/2A DC power supply
- Wi-Fi/BT via Fn-Link 6222B-SRB (RTL8222BS)

Linux commit details about the sun50i-h6-beelink-gs1.dts sync:
"arm64: dts: allwinner: h6: Introduce Beelink GS1 board"
(sha1: 089bee8dd119ba084dee6b17a2e1a53df4f30193)

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/configs/beelink_gs1_defconfig b/configs/beelink_gs1_defconfig
new file mode 100644
index 0000000..ef4dd29
--- /dev/null
+++ b/configs/beelink_gs1_defconfig
@@ -0,0 +1,15 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SPL=y
+CONFIG_MACH_SUN50I_H6=y
+CONFIG_MMC0_CD_PIN="PF6"
+CONFIG_MMC_SUNXI_SLOT_EXTRA=2
+# CONFIG_PSCI_RESET is not set
+CONFIG_NR_DRAM_BANKS=1
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_DEFAULT_DEVICE_TREE="sun50i-h6-beelink-gs1"
+CONFIG_LED=y
+CONFIG_LED_GPIO=y