sunxi: Add defconfig for icnova-a20-swac

The ICnova-A20-SWAC is a baseboard, equipped with the ICnova-A20 SoM from
In-Circuit:

http://wiki.in-circuit.de/index.php5?title=ICnova_A20_SODIMM
http://linux-sunxi.org/In-Circuit_ICnova_A20

This patch adds support for this board, including ethernet, LCD and USB
support.

Signed-off-by: Stefan Roese <sr@denx.de>
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 e4f8fb0..c576145 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -120,6 +120,11 @@
 S:	Maintained
 F:	configs/Hummingbird_A31_defconfig
 
+ICnova-A20-SWAC BOARD
+M:	Stefan Roese <sr@denx.de>
+S:	Maintained
+F:	configs/icnova-a20-swac_defconfig
+
 ITEAD IBOX BOARD
 M:	Marcus Cooper <codekipper@gmail.com>
 S:	Maintained