sunxi: Add softwinner astar mid756 A33 tablet board defconfig

The Astar MID756 is a 7" tablet using the A33 SoC with a 800x480 LCD screen,
512M RAM, 8G ROM and integrated sdio wifi.

Also see: http://linux-sunxi.org/Softwinner_astar-rda

Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
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 75e8b5a..c5b131f 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -59,6 +59,11 @@
 S:	Maintained
 F:	configs/Ampe_A76_defconfig
 
+Astar MID756 BOARD
+M:	VishnuPatekar <vishnupatekar0510@gmail.com>
+S:	Maintained
+F:	configs/Astar_MID756_defconfig
+
 COLOMBUS BOARD
 M:	Maxime Ripard <maxime.ripard@free-electrons.com>
 S:	Maintained