mx6: Add basic support for mx6qsabresd board.

mx6qsabresd is a board based on mx6q SoC with the following features:
- 1GB of DDR3
- 1 USB OTG port
- 1 HDMI output port
- SPI NOR
- LVDS panel
- Gigabit Ethernet
- Camera Connector
- eMMC and SD card slot
- Audio

Add very basic support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index a203f9f..f9cfa5a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -650,6 +650,7 @@
 	mx31pdk		i.MX31
 	mx53ard		i.MX53
 	mx53smd		i.MX53
+	mx6qsabresd	i.MX6Q
 
 Daniel Gorsulowski <daniel.gorsulowski@esd.eu>