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/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 7ce2a32..f39402b 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -188,6 +188,11 @@
 S:	Maintained
 F:	configs/Lamobo_R1_defconfig
 
+LICHEEPI-ZERO BOARD
+M:	Icenowy Zheng <icenowy@aosc.xyz>
+S:	Maintained
+F:	configs/LicheePi_Zero_defconfig
+
 LINKSPRITE-PCDUINO BOARD
 M:	Zoltan Herpai <wigyori@uid0.hu>
 S:	Maintained