ls102xa: dcu: Add platform support for DCU on LS1021AQDS board

This patch adds the CH7301 HDMI options and the common configuration
for DCU on LS1021AQDS board.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Alison Wang <alison.wang@freescale.com>
Cc: Jason Jin <Jason.Jin@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/ls1021aqds/Makefile b/board/freescale/ls1021aqds/Makefile
index 3b6903c..ab02344 100644
--- a/board/freescale/ls1021aqds/Makefile
+++ b/board/freescale/ls1021aqds/Makefile
@@ -7,3 +7,4 @@
 obj-y += ls1021aqds.o
 obj-y += ddr.o
 obj-y += eth.o
+obj-$(CONFIG_FSL_DCU_FB) += dcu.o