sunxi: Add Wexler TAB7200 support

This patch add support for Wexler TAB7200 tablet.

The Wexler TAB7200 is a A20 based tablet with 7 inch display(800x480),
capacitive touchscreen(5 fingers), 1G RAM, 4G NAND, micro SD card slot,
mini HDMI port, 3.5mm audio plug, 1 USB OTG port and 1 USB 2.0 port.

Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 2c6a979..ef3c937 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -138,3 +138,8 @@
 M:	Paul Kocialkowski <contact@paulk.fr>
 S:	Maintained
 F:	configs/TZX-Q8-713B7_defconfig
+
+WEXLER-TAB7200 BOARD
+M:	Aleksei Mamlin <mamlinav@gmail.com>
+S:	Maintained
+F:	configs/Wexler_TAB7200_defconfig