sunxi: add support for Lichee Pi Zero

Lichee Pi Zero is a development board with a V3s SoC, which features
64MiB DRAM co-packaged within the SoC, a TF slot, a SPI NOR slot (not
soldered in production batch), a 40-pin RGB LCD connector and some extra
pins available as 2.54mm pins or stamp holes.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/configs/LicheePi_Zero_defconfig b/configs/LicheePi_Zero_defconfig
new file mode 100644
index 0000000..c147084
--- /dev/null
+++ b/configs/LicheePi_Zero_defconfig
@@ -0,0 +1,12 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_MACH_SUN8I_V3S=y
+CONFIG_DRAM_CLK=360
+CONFIG_DRAM_ZQ=14779
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-v3s-licheepi-zero"
+# CONFIG_CONSOLE_MUX is not set
+CONFIG_SPL=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+# CONFIG_NETDEVICES is not set