board: toradex: colibri_vf: Add DCU support for Colibri Vybrid

The Vybrid SoC family has the same display controller unit (DCU)
like the LS1021A SoC. This patch adds platform data, pinmux defines
and clock control to enable the driver for Toradex Colibri Vybrid
module.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/toradex/colibri_vf/Makefile b/board/toradex/colibri_vf/Makefile
index c7e5134..4d6287f 100644
--- a/board/toradex/colibri_vf/Makefile
+++ b/board/toradex/colibri_vf/Makefile
@@ -5,3 +5,4 @@
 #
 
 obj-y	:= colibri_vf.o
+obj-$(CONFIG_VIDEO_FSL_DCU_FB) += dcu.o