sunxi: Add mk802 board / defconfig

The mk802 is the "classic" Allwinner A10 based hdmi tv-stick, it features
512M or 1G RAM, 4G nand, a mini-hdmi female connector, USB-A receptacle,
mini-usb receptacle (OTG) and USB-wifi. Somewhat unique the mk802 does not
use the AXP209 pmic, it does not have a pmic at all.

For more details see: http://linux-sunxi.org/Rikomagic_mk802

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 6ed8c3a..6f05031 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -9,6 +9,7 @@
 F:	configs/Mele_A1000_defconfig
 F:	configs/Mele_M3_defconfig
 F:	configs/Mini-X_defconfig
+F:	configs/mk802_defconfig
 F:	include/configs/sun5i.h
 F:	configs/A10s-OLinuXino-M_defconfig
 F:	configs/A13-OLinuXino_defconfig