sun8i: h3: Add support for the Beelink-x2 STB

The Beelink X2 is an STB based on the Allwinner H3 SoC with a uSD slot,
2 USB ports( 1 * USB-2 Host, 1 USB OTG), a 10/100M ethernet port using the
SoC's integrated PHY, Wifi via an sdio wifi chip, HDMI, an IR receiver, a
dual colour LED and an optical S/PDIF connector.

Linux commit details about the sun8i-h3-beelink-x2.dts sync:
"ARM: dts: sun8i: h3: Add ethernet0 alias to Beelink X2"
(sha1: cc4bddade114b696ab27c1a77cfc7040151306da)

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/configs/beelink_x2_defconfig b/configs/beelink_x2_defconfig
new file mode 100644
index 0000000..be94695
--- /dev/null
+++ b/configs/beelink_x2_defconfig
@@ -0,0 +1,16 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SPL=y
+CONFIG_MACH_SUN8I_H3=y
+CONFIG_DRAM_CLK=567
+CONFIG_DRAM_ZQ=3881979
+CONFIG_MMC_SUNXI_SLOT_EXTRA=2
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-h3-beelink-x2"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_CONSOLE_MUX=y
+# CONFIG_CMD_FLASH is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_SUN8I_EMAC=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE=y