powerpc/t1040qds: Add Video - HDMI support

T1040 has internal display interface unit (DIU) for driving video.
T1040QDS supports video mode via
-LCD using TI enconder
-HDMI type interface via HDMI encoder

Chrontel, CH7301C encoder which is I2C programmable is used as
HDMI connector on T1040QDS.
This patch add support to
-enable Video interface for T1040QDS
-route qixis multiplexing to enable DIU-HDMI interface on board
-program DIU pixel clock gerenartor for T1040
-program HDMI encoder via I2C on board

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/t1040qds/Makefile b/board/freescale/t1040qds/Makefile
index c7470d7..19ed21b 100644
--- a/board/freescale/t1040qds/Makefile
+++ b/board/freescale/t1040qds/Makefile
@@ -10,3 +10,4 @@
 obj-y	+= law.o
 obj-y	+= tlb.o
 obj-y	+= eth.o
+obj-y	+= diu.o