video: adf: add fbdev compatibility helper

Change-Id: I2b82bb625f805e8edb27799743b290dda5befb97
Signed-off-by: Greg Hackmann <ghackmann@google.com>
diff --git a/drivers/video/adf/Makefile b/drivers/video/adf/Makefile
index 4118f32..78d0915 100644
--- a/drivers/video/adf/Makefile
+++ b/drivers/video/adf/Makefile
@@ -10,4 +10,6 @@
 
 obj-$(CONFIG_COMPAT) += adf_fops32.o
 
+obj-$(CONFIG_ADF_FBDEV) += adf_fbdev.o
+
 obj-$(CONFIG_ADF_MEMBLOCK) += adf_memblock.o