sunxi: add support for Banana Pi M2 Zero board

Banana Pi M2 Zero is a board by Sinovoip with Allwinner H2+ SoC, 16-bit
512MiB DDR3 memory, a MicroSD slot, two MicroUSB ports (one OTG and one
powering-only) and a miniHDMI port.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
[jagan: Fixed board MAINTAINERS file]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 2f95976..d34cf7d 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -149,6 +149,11 @@
 F:	configs/Bananapi_m2m_defconfig
 F:	arch/arm/dts/sun8i-r16-bananapi-m2m.dts
 
+BANANAPI M2 ZERO BOARD
+M:	Icenowy Zheng <icenowy@aosc.io>
+S:	Maintained
+F:	configs/bananapi_m2_zero_defconfig
+
 BANANAPI M64
 M:	Jagan Teki <jagan@amarulasolutions.com>
 S:	Maintained